static void _lttng_event_destroy(struct lttng_kernel_event_common *event);
static void _lttng_channel_destroy(struct lttng_kernel_channel_buffer *chan);
-static int _lttng_event_unregister(struct lttng_kernel_event_recorder *event);
+static int _lttng_event_recorder_unregister(struct lttng_kernel_event_recorder *event);
static int _lttng_event_notifier_unregister(struct lttng_kernel_event_notifier *event_notifier);
static
int _lttng_event_metadata_statedump(struct lttng_kernel_session *session,
mutex_lock(&sessions_mutex);
WRITE_ONCE(session->active, 0);
list_for_each_entry(chan_priv, &session->priv->chan, node) {
- ret = lttng_syscalls_unregister_channel(chan_priv->pub);
+ ret = lttng_syscalls_unregister_syscall_table(&chan_priv->parent.syscall_table);
WARN_ON(ret);
}
list_for_each_entry(event_recorder_priv, &session->priv->events, node) {
- ret = _lttng_event_unregister(event_recorder_priv->pub);
+ ret = _lttng_event_recorder_unregister(event_recorder_priv->pub);
WARN_ON(ret);
}
synchronize_trace(); /* Wait for in-flight events to complete */
list_for_each_entry(chan_priv, &session->priv->chan, node) {
- ret = lttng_syscalls_destroy_channel(chan_priv->pub);
+ ret = lttng_syscalls_destroy_syscall_table(&chan_priv->parent.syscall_table);
WARN_ON(ret);
}
list_for_each_entry_safe(event_recorder_enabler, tmp_event_recorder_enabler,
mutex_lock(&sessions_mutex);
- ret = lttng_syscalls_unregister_event_notifier_group(event_notifier_group);
+ ret = lttng_syscalls_unregister_syscall_table(&event_notifier_group->syscall_table);
WARN_ON(ret);
list_for_each_entry_safe(event_notifier_priv, tmpevent_notifier_priv,
irq_work_sync(&event_notifier_group->wakeup_pending);
- kfree(event_notifier_group->syscall_table.sc_filter);
+ ret = lttng_syscalls_destroy_syscall_table(&event_notifier_group->syscall_table);
+ WARN_ON(ret);
list_for_each_entry_safe(event_notifier_enabler, tmp_event_notifier_enabler,
&event_notifier_group->enablers_head, node)
return ret;
}
-int lttng_channel_enable(struct lttng_kernel_channel_buffer *channel)
+static
+bool is_channel_buffer_metadata(struct lttng_kernel_channel_common *channel)
+{
+ struct lttng_kernel_channel_buffer *chan_buf;
+
+ if (channel->type != LTTNG_KERNEL_CHANNEL_TYPE_BUFFER)
+ return false;
+ chan_buf = container_of(channel, struct lttng_kernel_channel_buffer, parent);
+ if (chan_buf->priv->channel_type == METADATA_CHANNEL)
+ return true;
+ return false;
+}
+
+int lttng_channel_enable(struct lttng_kernel_channel_common *channel)
{
int ret = 0;
mutex_lock(&sessions_mutex);
- if (channel->priv->channel_type == METADATA_CHANNEL) {
+ if (is_channel_buffer_metadata(channel)) {
ret = -EPERM;
goto end;
}
- if (channel->parent.enabled) {
+ if (channel->enabled) {
ret = -EEXIST;
goto end;
}
/* Set transient enabler state to "enabled" */
- channel->priv->parent.tstate = 1;
- lttng_session_sync_event_enablers(channel->parent.session);
+ channel->priv->tstate = 1;
+ lttng_session_sync_event_enablers(channel->session);
/* Set atomically the state to "enabled" */
- WRITE_ONCE(channel->parent.enabled, 1);
+ WRITE_ONCE(channel->enabled, 1);
end:
mutex_unlock(&sessions_mutex);
return ret;
}
-int lttng_channel_disable(struct lttng_kernel_channel_buffer *channel)
+int lttng_channel_disable(struct lttng_kernel_channel_common *channel)
{
int ret = 0;
mutex_lock(&sessions_mutex);
- if (channel->priv->channel_type == METADATA_CHANNEL) {
+ if (is_channel_buffer_metadata(channel)) {
ret = -EPERM;
goto end;
}
- if (!channel->parent.enabled) {
+ if (!channel->enabled) {
ret = -EEXIST;
goto end;
}
/* Set atomically the state to "disabled" */
- WRITE_ONCE(channel->parent.enabled, 0);
+ WRITE_ONCE(channel->enabled, 0);
/* Set transient enabler state to "enabled" */
- channel->priv->parent.tstate = 0;
- lttng_session_sync_event_enablers(channel->parent.session);
+ channel->priv->tstate = 0;
+ lttng_session_sync_event_enablers(channel->session);
end:
mutex_unlock(&sessions_mutex);
return ret;
return ret;
}
-struct lttng_kernel_channel_buffer *lttng_channel_create(struct lttng_kernel_session *session,
+struct lttng_kernel_channel_buffer *lttng_channel_buffer_create(struct lttng_kernel_session *session,
const char *transport_name,
void *buf_addr,
size_t subbuf_size, size_t num_subbuf,
event_param->u.kprobe.symbol_name,
event_param->u.kprobe.offset,
event_param->u.kprobe.addr,
- event_recorder);
+ &event_recorder->parent);
if (ret) {
ret = -EINVAL;
goto register_error;
event_param->u.kretprobe.symbol_name,
event_param->u.kretprobe.offset,
event_param->u.kretprobe.addr,
- event_recorder, event_recorder_return);
+ &event_recorder->parent, &event_recorder_return->parent);
if (ret) {
kmem_cache_free(event_recorder_private_cache, event_recorder_return_priv);
kmem_cache_free(event_recorder_cache, event_recorder_return);
ret = lttng_uprobes_register_event(event_param->name,
event_param->u.uprobe.fd,
- event_recorder);
+ &event_recorder->parent);
if (ret)
goto register_error;
ret = try_module_get(event_recorder->priv->parent.desc->owner);
* registration.
*/
smp_wmb();
- ret = lttng_kprobes_register_event_notifier(
+ ret = lttng_kprobes_register_event(event_notifier_param->event.u.kprobe.symbol_name,
event_notifier_param->event.u.kprobe.symbol_name,
event_notifier_param->event.u.kprobe.offset,
event_notifier_param->event.u.kprobe.addr,
- event_notifier);
+ &event_notifier->parent);
if (ret) {
ret = -EINVAL;
goto register_error;
*/
smp_wmb();
- ret = lttng_uprobes_register_event_notifier(
- event_notifier_param->event.name,
+ ret = lttng_uprobes_register_event(event_notifier_param->event.name,
event_notifier_param->event.u.uprobe.fd,
- event_notifier);
+ &event_notifier->parent);
if (ret)
goto register_error;
ret = try_module_get(event_notifier->priv->parent.desc->owner);
/* Only used for tracepoints for now. */
static
-void register_event(struct lttng_kernel_event_recorder *event_recorder)
+void register_event_recorder(struct lttng_kernel_event_recorder *event_recorder)
{
const struct lttng_kernel_event_desc *desc;
int ret = -EINVAL;
case LTTNG_KERNEL_ABI_TRACEPOINT:
ret = lttng_wrapper_tracepoint_probe_register(desc->event_kname,
desc->tp_class->probe_callback,
- event_recorder);
+ &event_recorder->parent);
break;
case LTTNG_KERNEL_ABI_SYSCALL:
- ret = lttng_syscall_filter_enable_event_recorder(event_recorder);
+ ret = lttng_syscall_filter_enable_event(&event_recorder->parent);
break;
case LTTNG_KERNEL_ABI_KPROBE:
/*
* Only used internally at session destruction.
*/
-int _lttng_event_unregister(struct lttng_kernel_event_recorder *event_recorder)
+int _lttng_event_recorder_unregister(struct lttng_kernel_event_recorder *event_recorder)
{
struct lttng_kernel_event_common_private *event_priv = &event_recorder->priv->parent;
const struct lttng_kernel_event_desc *desc;
case LTTNG_KERNEL_ABI_TRACEPOINT:
ret = lttng_wrapper_tracepoint_probe_unregister(event_priv->desc->event_kname,
event_priv->desc->tp_class->probe_callback,
- event_recorder);
+ &event_recorder->parent);
break;
case LTTNG_KERNEL_ABI_KPROBE:
- lttng_kprobes_unregister_event(event_recorder);
+ lttng_kprobes_unregister_event(&event_recorder->parent);
ret = 0;
break;
case LTTNG_KERNEL_ABI_KRETPROBE:
- lttng_kretprobes_unregister(event_recorder);
+ lttng_kretprobes_unregister(&event_recorder->parent);
ret = 0;
break;
case LTTNG_KERNEL_ABI_SYSCALL:
- ret = lttng_syscall_filter_disable_event_recorder(event_recorder);
+ ret = lttng_syscall_filter_disable_event(&event_recorder->parent);
break;
case LTTNG_KERNEL_ABI_NOOP:
break;
case LTTNG_KERNEL_ABI_UPROBE:
- lttng_uprobes_unregister_event(event_recorder);
+ lttng_uprobes_unregister_event(&event_recorder->parent);
ret = 0;
break;
case LTTNG_KERNEL_ABI_TRACEPOINT:
ret = lttng_wrapper_tracepoint_probe_register(desc->event_kname,
desc->tp_class->probe_callback,
- event_notifier);
+ &event_notifier->parent);
break;
case LTTNG_KERNEL_ABI_SYSCALL:
- ret = lttng_syscall_filter_enable_event_notifier(event_notifier);
+ ret = lttng_syscall_filter_enable_event(&event_notifier->parent);
break;
case LTTNG_KERNEL_ABI_KPROBE:
case LTTNG_KERNEL_ABI_TRACEPOINT:
ret = lttng_wrapper_tracepoint_probe_unregister(event_notifier->priv->parent.desc->event_kname,
event_notifier->priv->parent.desc->tp_class->probe_callback,
- event_notifier);
+ &event_notifier->parent);
break;
case LTTNG_KERNEL_ABI_KPROBE:
- lttng_kprobes_unregister_event_notifier(event_notifier);
+ lttng_kprobes_unregister_event(&event_notifier->parent);
ret = 0;
break;
case LTTNG_KERNEL_ABI_UPROBE:
- lttng_uprobes_unregister_event_notifier(event_notifier);
+ lttng_uprobes_unregister_event(&event_notifier->parent);
ret = 0;
break;
case LTTNG_KERNEL_ABI_SYSCALL:
- ret = lttng_syscall_filter_disable_event_notifier(event_notifier);
+ ret = lttng_syscall_filter_disable_event(&event_notifier->parent);
break;
case LTTNG_KERNEL_ABI_KRETPROBE:
case LTTNG_KERNEL_ABI_KPROBE:
module_put(event_priv->desc->owner);
- lttng_kprobes_destroy_event_private(event_recorder);
+ lttng_kprobes_destroy_event_private(&event_recorder->parent);
break;
case LTTNG_KERNEL_ABI_KRETPROBE:
module_put(event_priv->desc->owner);
- lttng_kretprobes_destroy_private(event_recorder);
+ lttng_kretprobes_destroy_private(&event_recorder->parent);
break;
case LTTNG_KERNEL_ABI_SYSCALL:
case LTTNG_KERNEL_ABI_UPROBE:
module_put(event_priv->desc->owner);
- lttng_uprobes_destroy_event_private(event_recorder);
+ lttng_uprobes_destroy_event_private(&event_recorder->parent);
break;
case LTTNG_KERNEL_ABI_FUNCTION:
case LTTNG_KERNEL_ABI_KPROBE:
module_put(event_notifier->priv->parent.desc->owner);
- lttng_kprobes_destroy_event_notifier_private(event_notifier);
+ lttng_kprobes_destroy_event_private(&event_notifier->parent);
break;
case LTTNG_KERNEL_ABI_SYSCALL:
case LTTNG_KERNEL_ABI_UPROBE:
module_put(event_notifier->priv->parent.desc->owner);
- lttng_uprobes_destroy_event_notifier_private(event_notifier);
+ lttng_uprobes_destroy_event_private(&event_notifier->parent);
break;
case LTTNG_KERNEL_ABI_KRETPROBE:
{
int ret;
- ret = lttng_syscalls_register_event(event_enabler);
+ ret = lttng_syscalls_register_event(&event_enabler->parent);
WARN_ON_ONCE(ret);
}
{
int ret;
- ret = lttng_syscalls_register_event_notifier(event_notifier_enabler);
+ ret = lttng_syscalls_register_event(&event_notifier_enabler->parent);
WARN_ON_ONCE(ret);
ret = lttng_syscalls_create_matching_event_notifiers(event_notifier_enabler);
WARN_ON_ONCE(ret);
* state.
*/
if (enabled) {
- register_event(event_recorder);
+ register_event_recorder(event_recorder);
} else {
- _lttng_event_unregister(event_recorder);
+ _lttng_event_recorder_unregister(event_recorder);
}
/* Check if has enablers without bytecode enabled */