#include <wrapper/types.h>
#include <lttng/kernel-version.h>
#include <lttng/events.h>
+#include <lttng/events-internal.h>
#include <lttng/lttng-bytecode.h>
#include <lttng/tracer.h>
#include <lttng/event-notifier-notification.h>
void _lttng_metadata_channel_hangup(struct lttng_metadata_stream *stream);
static
int _lttng_type_statedump(struct lttng_session *session,
- const struct lttng_type *type,
+ const struct lttng_kernel_type_common *type,
+ enum lttng_kernel_string_encoding parent_encoding,
size_t nesting);
static
int _lttng_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting);
void synchronize_trace(void)
{
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5,1,0))
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(5,1,0))
synchronize_rcu();
#else
synchronize_sched();
#endif
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0))
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0))
#ifdef CONFIG_PREEMPT_RT_FULL
synchronize_rcu();
#endif
-#else /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) */
+#else /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0)) */
#ifdef CONFIG_PREEMPT_RT
synchronize_rcu();
#endif
-#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(3,4,0)) */
+#endif /* (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(3,4,0)) */
}
void lttng_lock_sessions(void)
if (event_notifier_group->error_counter) {
struct lttng_counter *error_counter = event_notifier_group->error_counter;
+
error_counter->ops->counter_destroy(error_counter->counter);
module_put(error_counter->transport->owner);
lttng_kvfree(error_counter);
goto end;
}
switch (event->instrumentation) {
- case LTTNG_KERNEL_TRACEPOINT:
+ case LTTNG_KERNEL_TRACEPOINT: /* Fall-through */
case LTTNG_KERNEL_SYSCALL:
ret = -EINVAL;
break;
- case LTTNG_KERNEL_KPROBE:
+
+ case LTTNG_KERNEL_KPROBE: /* Fall-through */
case LTTNG_KERNEL_UPROBE:
- case LTTNG_KERNEL_NOOP:
WRITE_ONCE(event->enabled, 1);
break;
+
case LTTNG_KERNEL_KRETPROBE:
ret = lttng_kretprobes_event_enable_state(event, 1);
break;
- case LTTNG_KERNEL_FUNCTION: /* Fall-through. */
+
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
goto end;
}
switch (event->instrumentation) {
- case LTTNG_KERNEL_TRACEPOINT:
+ case LTTNG_KERNEL_TRACEPOINT: /* Fall-through */
case LTTNG_KERNEL_SYSCALL:
ret = -EINVAL;
break;
- case LTTNG_KERNEL_KPROBE:
+
+ case LTTNG_KERNEL_KPROBE: /* Fall-through */
case LTTNG_KERNEL_UPROBE:
- case LTTNG_KERNEL_NOOP:
WRITE_ONCE(event->enabled, 0);
break;
+
case LTTNG_KERNEL_KRETPROBE:
+
ret = lttng_kretprobes_event_enable_state(event, 0);
break;
- case LTTNG_KERNEL_FUNCTION: /* Fall-through. */
+
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
goto end;
}
switch (event_notifier->instrumentation) {
- case LTTNG_KERNEL_TRACEPOINT:
+ case LTTNG_KERNEL_TRACEPOINT: /* Fall-through */
case LTTNG_KERNEL_SYSCALL:
ret = -EINVAL;
break;
- case LTTNG_KERNEL_KPROBE:
+
+ case LTTNG_KERNEL_KPROBE: /* Fall-through */
case LTTNG_KERNEL_UPROBE:
WRITE_ONCE(event_notifier->enabled, 1);
break;
- case LTTNG_KERNEL_FUNCTION:
- case LTTNG_KERNEL_NOOP:
- case LTTNG_KERNEL_KRETPROBE:
+
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
goto end;
}
switch (event_notifier->instrumentation) {
- case LTTNG_KERNEL_TRACEPOINT:
+ case LTTNG_KERNEL_TRACEPOINT: /* Fall-through */
case LTTNG_KERNEL_SYSCALL:
ret = -EINVAL;
break;
- case LTTNG_KERNEL_KPROBE:
+
+ case LTTNG_KERNEL_KPROBE: /* Fall-through */
case LTTNG_KERNEL_UPROBE:
WRITE_ONCE(event_notifier->enabled, 0);
break;
- case LTTNG_KERNEL_FUNCTION:
- case LTTNG_KERNEL_NOOP:
- case LTTNG_KERNEL_KRETPROBE:
+
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
chan->ops->channel_destroy(chan->chan);
module_put(chan->transport->owner);
list_del(&chan->list);
- lttng_destroy_context(chan->ctx);
+ lttng_kernel_destroy_context(chan->ctx);
kfree(chan);
}
struct lttng_event *_lttng_event_create(struct lttng_channel *chan,
struct lttng_kernel_event *event_param,
void *filter,
- const struct lttng_event_desc *event_desc,
+ const struct lttng_kernel_event_desc *event_desc,
enum lttng_kernel_instrumentation itype)
{
struct lttng_session *session = chan->session;
switch (itype) {
case LTTNG_KERNEL_TRACEPOINT:
- event_name = event_desc->name;
+ event_name = event_desc->event_name;
break;
- case LTTNG_KERNEL_KPROBE:
- case LTTNG_KERNEL_UPROBE:
- case LTTNG_KERNEL_KRETPROBE:
- case LTTNG_KERNEL_NOOP:
+
+ case LTTNG_KERNEL_KPROBE: /* Fall-through */
+ case LTTNG_KERNEL_UPROBE: /* Fall-through */
+ case LTTNG_KERNEL_KRETPROBE: /* Fall-through */
case LTTNG_KERNEL_SYSCALL:
event_name = event_param->name;
break;
- case LTTNG_KERNEL_FUNCTION: /* Fall-through. */
+
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
LTTNG_EVENT_HT_SIZE, event_name);
lttng_hlist_for_each_entry(event, head, hlist) {
WARN_ON_ONCE(!event->desc);
- if (!strncmp(event->desc->name, event_name,
+ if (!strncmp(event->desc->event_name, event_name,
LTTNG_KERNEL_SYM_NAME_LEN - 1)
&& chan == event->chan) {
ret = -EEXIST;
/* Populate lttng_event structure before event registration. */
smp_wmb();
break;
+
case LTTNG_KERNEL_KPROBE:
/*
* Needs to be explicitly enabled after creation, since
ret = try_module_get(event->desc->owner);
WARN_ON_ONCE(!ret);
break;
+
case LTTNG_KERNEL_KRETPROBE:
{
struct lttng_event *event_return;
event_return->enabled = 0;
event_return->registered = 1;
event_return->instrumentation = itype;
+ INIT_LIST_HEAD(&event_return->filter_bytecode_runtime_head);
+ INIT_LIST_HEAD(&event_return->enablers_ref_head);
/*
* Populate lttng_event structure before kretprobe registration.
*/
list_add(&event_return->list, &chan->session->events);
break;
}
- case LTTNG_KERNEL_NOOP:
+
case LTTNG_KERNEL_SYSCALL:
/*
* Needs to be explicitly enabled after creation, since
goto register_error;
}
break;
+
case LTTNG_KERNEL_UPROBE:
/*
* Needs to be explicitly enabled after creation, since
ret = try_module_get(event->desc->owner);
WARN_ON_ONCE(!ret);
break;
+
case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
}
struct lttng_event_notifier *_lttng_event_notifier_create(
- const struct lttng_event_desc *event_desc,
+ const struct lttng_kernel_event_desc *event_desc,
uint64_t token, uint64_t error_counter_index,
struct lttng_event_notifier_group *event_notifier_group,
struct lttng_kernel_event_notifier *event_notifier_param,
void *filter, enum lttng_kernel_instrumentation itype)
{
struct lttng_event_notifier *event_notifier;
+ struct lttng_counter *error_counter;
const char *event_name;
struct hlist_head *head;
int ret;
switch (itype) {
case LTTNG_KERNEL_TRACEPOINT:
- event_name = event_desc->name;
+ event_name = event_desc->event_name;
break;
- case LTTNG_KERNEL_KPROBE:
- case LTTNG_KERNEL_UPROBE:
+
+ case LTTNG_KERNEL_KPROBE: /* Fall-through */
+ case LTTNG_KERNEL_UPROBE: /* Fall-through */
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_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
LTTNG_EVENT_NOTIFIER_HT_SIZE, event_name);
lttng_hlist_for_each_entry(event_notifier, head, hlist) {
WARN_ON_ONCE(!event_notifier->desc);
- if (!strncmp(event_notifier->desc->name, event_name,
+ if (!strncmp(event_notifier->desc->event_name, event_name,
LTTNG_KERNEL_SYM_NAME_LEN - 1)
&& event_notifier_group == event_notifier->group
&& token == event_notifier->user_token) {
/* Populate lttng_event_notifier structure before event registration. */
smp_wmb();
break;
+
case LTTNG_KERNEL_KPROBE:
/*
* Needs to be explicitly enabled after creation, since
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
goto register_error;
}
break;
+
case LTTNG_KERNEL_UPROBE:
/*
* Needs to be explicitly enabled after creation, since
ret = try_module_get(event_notifier->desc->owner);
WARN_ON_ONCE(!ret);
break;
- case LTTNG_KERNEL_KRETPROBE:
- case LTTNG_KERNEL_FUNCTION:
+
+ case LTTNG_KERNEL_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
ret = -EINVAL;
/*
* Clear the error counter bucket. The sessiond keeps track of which
- * bucket is currently in use. We trust it.
+ * bucket is currently in use. We trust it. The session lock
+ * synchronizes against concurrent creation of the error
+ * counter.
*/
- if (event_notifier_group->error_counter) {
+ error_counter = event_notifier_group->error_counter;
+ if (error_counter) {
size_t dimension_index[1];
/*
}
dimension_index[0] = event_notifier->error_counter_index;
- ret = event_notifier_group->error_counter->ops->counter_clear(
- event_notifier_group->error_counter->counter,
- dimension_index);
+ ret = error_counter->ops->counter_clear(error_counter->counter, dimension_index);
if (ret) {
printk(KERN_INFO "LTTng: event_notifier: Unable to clear error counter bucket %llu\n",
event_notifier->error_counter_index);
struct lttng_event *lttng_event_create(struct lttng_channel *chan,
struct lttng_kernel_event *event_param,
void *filter,
- const struct lttng_event_desc *event_desc,
+ const struct lttng_kernel_event_desc *event_desc,
enum lttng_kernel_instrumentation itype)
{
struct lttng_event *event;
}
struct lttng_event_notifier *lttng_event_notifier_create(
- const struct lttng_event_desc *event_desc,
+ const struct lttng_kernel_event_desc *event_desc,
uint64_t id, uint64_t error_counter_index,
struct lttng_event_notifier_group *event_notifier_group,
struct lttng_kernel_event_notifier *event_notifier_param,
static
void register_event(struct lttng_event *event)
{
- const struct lttng_event_desc *desc;
+ const struct lttng_kernel_event_desc *desc;
int ret = -EINVAL;
if (event->registered)
desc = event->desc;
switch (event->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
- ret = lttng_wrapper_tracepoint_probe_register(desc->kname,
+ ret = lttng_wrapper_tracepoint_probe_register(desc->event_kname,
desc->probe_callback,
event);
break;
+
case LTTNG_KERNEL_SYSCALL:
ret = lttng_syscall_filter_enable_event(event->chan, event);
break;
- case LTTNG_KERNEL_KPROBE:
- case LTTNG_KERNEL_UPROBE:
+
+ case LTTNG_KERNEL_KPROBE: /* Fall-through */
+ case LTTNG_KERNEL_UPROBE: /* Fall-through */
case LTTNG_KERNEL_KRETPROBE:
- case LTTNG_KERNEL_NOOP:
ret = 0;
break;
+
case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
}
*/
int _lttng_event_unregister(struct lttng_event *event)
{
- const struct lttng_event_desc *desc;
+ const struct lttng_kernel_event_desc *desc;
int ret = -EINVAL;
if (!event->registered)
desc = event->desc;
switch (event->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
- ret = lttng_wrapper_tracepoint_probe_unregister(event->desc->kname,
+ ret = lttng_wrapper_tracepoint_probe_unregister(event->desc->event_kname,
event->desc->probe_callback,
event);
break;
+
case LTTNG_KERNEL_KPROBE:
lttng_kprobes_unregister_event(event);
ret = 0;
break;
+
case LTTNG_KERNEL_KRETPROBE:
lttng_kretprobes_unregister(event);
ret = 0;
break;
+
case LTTNG_KERNEL_SYSCALL:
ret = lttng_syscall_filter_disable_event(event->chan, event);
break;
+
case LTTNG_KERNEL_NOOP:
ret = 0;
break;
+
case LTTNG_KERNEL_UPROBE:
lttng_uprobes_unregister_event(event);
ret = 0;
break;
+
case LTTNG_KERNEL_FUNCTION: /* Fall-through */
default:
WARN_ON_ONCE(1);
static
void register_event_notifier(struct lttng_event_notifier *event_notifier)
{
- const struct lttng_event_desc *desc;
+ const struct lttng_kernel_event_desc *desc;
int ret = -EINVAL;
if (event_notifier->registered)
desc = event_notifier->desc;
switch (event_notifier->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
- ret = lttng_wrapper_tracepoint_probe_register(desc->kname,
+ ret = lttng_wrapper_tracepoint_probe_register(desc->event_kname,
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_KPROBE: /* Fall-through */
case LTTNG_KERNEL_UPROBE:
ret = 0;
break;
- case LTTNG_KERNEL_KRETPROBE:
- case LTTNG_KERNEL_FUNCTION:
- case LTTNG_KERNEL_NOOP:
+
+ case LTTNG_KERNEL_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
}
int _lttng_event_notifier_unregister(
struct lttng_event_notifier *event_notifier)
{
- const struct lttng_event_desc *desc;
+ const struct lttng_kernel_event_desc *desc;
int ret = -EINVAL;
if (!event_notifier->registered)
desc = event_notifier->desc;
switch (event_notifier->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
- ret = lttng_wrapper_tracepoint_probe_unregister(event_notifier->desc->kname,
+ ret = lttng_wrapper_tracepoint_probe_unregister(event_notifier->desc->event_kname,
event_notifier->desc->event_notifier_callback,
event_notifier);
break;
+
case LTTNG_KERNEL_KPROBE:
lttng_kprobes_unregister_event_notifier(event_notifier);
ret = 0;
break;
+
case LTTNG_KERNEL_UPROBE:
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_NOOP:
+
+ case LTTNG_KERNEL_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
}
static
void _lttng_event_destroy(struct lttng_event *event)
{
+ struct lttng_enabler_ref *enabler_ref, *tmp_enabler_ref;
+
switch (event->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
lttng_event_desc_put(event->desc);
break;
+
case LTTNG_KERNEL_KPROBE:
module_put(event->desc->owner);
lttng_kprobes_destroy_event_private(event);
break;
+
case LTTNG_KERNEL_KRETPROBE:
module_put(event->desc->owner);
lttng_kretprobes_destroy_private(event);
break;
- case LTTNG_KERNEL_NOOP:
+
case LTTNG_KERNEL_SYSCALL:
break;
+
case LTTNG_KERNEL_UPROBE:
module_put(event->desc->owner);
lttng_uprobes_destroy_event_private(event);
break;
+
case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
}
list_del(&event->list);
- lttng_destroy_context(event->ctx);
+ lttng_kernel_destroy_context(event->ctx);
+ lttng_free_event_filter_runtime(event);
+ /* Free event enabler refs */
+ list_for_each_entry_safe(enabler_ref, tmp_enabler_ref,
+ &event->enablers_ref_head, node)
+ kfree(enabler_ref);
kmem_cache_free(event_cache, event);
}
static
void _lttng_event_notifier_destroy(struct lttng_event_notifier *event_notifier)
{
+ struct lttng_enabler_ref *enabler_ref, *tmp_enabler_ref;
+
switch (event_notifier->instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
lttng_event_desc_put(event_notifier->desc);
break;
+
case LTTNG_KERNEL_KPROBE:
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_KRETPROBE: /* Fall-through */
+ case LTTNG_KERNEL_FUNCTION: /* Fall-through */
+ case LTTNG_KERNEL_NOOP: /* Fall-through */
default:
WARN_ON_ONCE(1);
}
list_del(&event_notifier->list);
+ lttng_free_event_notifier_filter_runtime(event_notifier);
+ /* Free event enabler refs */
+ list_for_each_entry_safe(enabler_ref, tmp_enabler_ref,
+ &event_notifier->enablers_ref_head, node)
+ kfree(enabler_ref);
kmem_cache_free(event_notifier_cache, event_notifier);
}
return 1;
}
-int lttng_desc_match_enabler(const struct lttng_event_desc *desc,
+int lttng_desc_match_enabler(const struct lttng_kernel_event_desc *desc,
struct lttng_enabler *enabler)
{
const char *desc_name, *enabler_name;
enabler_name = enabler->event_param.name;
switch (enabler->event_param.instrumentation) {
case LTTNG_KERNEL_TRACEPOINT:
- desc_name = desc->name;
+ desc_name = desc->event_name;
switch (enabler->format_type) {
case LTTNG_ENABLER_FORMAT_STAR_GLOB:
return lttng_match_enabler_star_glob(desc_name, enabler_name);
return -EINVAL;
}
break;
+
case LTTNG_KERNEL_SYSCALL:
- desc_name = desc->name;
+ desc_name = desc->event_name;
if (!strncmp(desc_name, "compat_", strlen("compat_"))) {
desc_name += strlen("compat_");
compat = true;
return -EINVAL;
}
break;
+
default:
WARN_ON_ONCE(1);
return -EINVAL;
void lttng_create_tracepoint_event_if_missing(struct lttng_event_enabler *event_enabler)
{
struct lttng_session *session = event_enabler->chan->session;
- struct lttng_probe_desc *probe_desc;
- const struct lttng_event_desc *desc;
+ struct lttng_kernel_probe_desc *probe_desc;
+ const struct lttng_kernel_event_desc *desc;
int i;
struct list_head *probe_list;
*/
head = utils_borrow_hash_table_bucket(
session->events_ht.table, LTTNG_EVENT_HT_SIZE,
- desc->name);
+ desc->event_name);
lttng_hlist_for_each_entry(event, head, hlist) {
if (event->desc == desc
&& event->chan == event_enabler->chan)
LTTNG_KERNEL_TRACEPOINT);
if (!event) {
printk(KERN_INFO "LTTng: Unable to create event %s\n",
- probe_desc->event_desc[i]->name);
+ probe_desc->event_desc[i]->event_name);
}
}
}
void lttng_create_tracepoint_event_notifier_if_missing(struct lttng_event_notifier_enabler *event_notifier_enabler)
{
struct lttng_event_notifier_group *event_notifier_group = event_notifier_enabler->group;
- struct lttng_probe_desc *probe_desc;
- const struct lttng_event_desc *desc;
+ struct lttng_kernel_probe_desc *probe_desc;
+ const struct lttng_kernel_event_desc *desc;
int i;
struct list_head *probe_list;
*/
head = utils_borrow_hash_table_bucket(
event_notifier_group->event_notifiers_ht.table,
- LTTNG_EVENT_NOTIFIER_HT_SIZE, desc->name);
+ LTTNG_EVENT_NOTIFIER_HT_SIZE, desc->event_name);
lttng_hlist_for_each_entry(event_notifier, head, hlist) {
if (event_notifier->desc == desc
&& event_notifier->user_token == event_notifier_enabler->base.user_token)
LTTNG_KERNEL_TRACEPOINT);
if (IS_ERR(event_notifier)) {
printk(KERN_INFO "Unable to create event_notifier %s\n",
- probe_desc->event_desc[i]->name);
+ probe_desc->event_desc[i]->event_name);
}
}
}
case LTTNG_KERNEL_TRACEPOINT:
lttng_create_tracepoint_event_if_missing(event_enabler);
break;
+
case LTTNG_KERNEL_SYSCALL:
lttng_create_syscall_event_if_missing(event_enabler);
break;
+
default:
WARN_ON_ONCE(1);
break;
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;
lttng_enabler_destroy(lttng_event_enabler_as_enabler(event_enabler));
/* Destroy contexts */
- lttng_destroy_context(event_enabler->ctx);
+ lttng_kernel_destroy_context(event_enabler->ctx);
list_del(&event_enabler->node);
kfree(event_enabler);
int enabled = 0, has_enablers_without_bytecode = 0;
switch (event->instrumentation) {
- case LTTNG_KERNEL_TRACEPOINT:
+ case LTTNG_KERNEL_TRACEPOINT: /* Fall-through */
case LTTNG_KERNEL_SYSCALL:
/* Enable events */
list_for_each_entry(enabler_ref,
}
}
break;
+
default:
/* Not handled with lazy sync. */
continue;
int enabled = 0, has_enablers_without_bytecode = 0;
switch (event_notifier->instrumentation) {
- case LTTNG_KERNEL_TRACEPOINT:
+ case LTTNG_KERNEL_TRACEPOINT: /* Fall-through */
case LTTNG_KERNEL_SYSCALL:
/* Enable event_notifiers */
list_for_each_entry(enabler_ref,
}
}
break;
+
default:
/* Not handled with sync. */
continue;
list_for_each_entry(runtime,
&event_notifier->capture_bytecode_runtime_head, node)
lttng_bytecode_capture_sync_state(runtime);
+
+ WRITE_ONCE(event_notifier->eval_capture, !!event_notifier->num_captures);
}
}
static
int lttng_field_name_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
return lttng_metadata_printf(session, " _%s;\n", field->name);
static
int _lttng_integer_type_statedump(struct lttng_session *session,
- const struct lttng_type *type,
+ const struct lttng_kernel_type_integer *type,
+ enum lttng_kernel_string_encoding parent_encoding,
size_t nesting)
{
int ret;
- WARN_ON_ONCE(type->atype != atype_integer);
ret = print_tabs(session, nesting);
if (ret)
return ret;
ret = lttng_metadata_printf(session,
"integer { size = %u; align = %u; signed = %u; encoding = %s; base = %u;%s }",
- type->u.integer.size,
- type->u.integer.alignment,
- type->u.integer.signedness,
- (type->u.integer.encoding == lttng_encode_none)
+ type->size,
+ type->alignment,
+ type->signedness,
+ (parent_encoding == lttng_kernel_string_encoding_none)
? "none"
- : (type->u.integer.encoding == lttng_encode_UTF8)
+ : (parent_encoding == lttng_kernel_string_encoding_UTF8)
? "UTF8"
: "ASCII",
- type->u.integer.base,
+ type->base,
#if __BYTE_ORDER == __BIG_ENDIAN
- type->u.integer.reverse_byte_order ? " byte_order = le;" : ""
+ type->reverse_byte_order ? " byte_order = le;" : ""
#else
- type->u.integer.reverse_byte_order ? " byte_order = be;" : ""
+ type->reverse_byte_order ? " byte_order = be;" : ""
#endif
);
return ret;
*/
static
int _lttng_struct_type_statedump(struct lttng_session *session,
- const struct lttng_type *type,
+ const struct lttng_kernel_type_struct *type,
size_t nesting)
{
int ret;
uint32_t i, nr_fields;
unsigned int alignment;
- WARN_ON_ONCE(type->atype != atype_struct_nestable);
-
ret = print_tabs(session, nesting);
if (ret)
return ret;
"struct {\n");
if (ret)
return ret;
- nr_fields = type->u.struct_nestable.nr_fields;
+ nr_fields = type->nr_fields;
for (i = 0; i < nr_fields; i++) {
- const struct lttng_event_field *iter_field;
+ const struct lttng_kernel_event_field *iter_field;
- iter_field = &type->u.struct_nestable.fields[i];
+ iter_field = type->fields[i];
ret = _lttng_field_statedump(session, iter_field, nesting + 1);
if (ret)
return ret;
ret = print_tabs(session, nesting);
if (ret)
return ret;
- alignment = type->u.struct_nestable.alignment;
+ alignment = type->alignment;
if (alignment) {
ret = lttng_metadata_printf(session,
"} align(%u)",
*/
static
int _lttng_struct_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
int ret;
ret = _lttng_struct_type_statedump(session,
- &field->type, nesting);
+ lttng_kernel_get_type_struct(field->type), nesting);
if (ret)
return ret;
return lttng_field_name_statedump(session, field, nesting);
*/
static
int _lttng_variant_type_statedump(struct lttng_session *session,
- const struct lttng_type *type,
+ const struct lttng_kernel_type_variant *type,
size_t nesting)
{
int ret;
uint32_t i, nr_choices;
- WARN_ON_ONCE(type->atype != atype_variant_nestable);
/*
* CTF 1.8 does not allow expressing nonzero variant alignment in a nestable way.
*/
- if (type->u.variant_nestable.alignment != 0)
+ if (type->alignment != 0)
return -EINVAL;
ret = print_tabs(session, nesting);
if (ret)
return ret;
ret = lttng_metadata_printf(session,
"variant <_%s> {\n",
- type->u.variant_nestable.tag_name);
+ type->tag_name);
if (ret)
return ret;
- nr_choices = type->u.variant_nestable.nr_choices;
+ nr_choices = type->nr_choices;
for (i = 0; i < nr_choices; i++) {
- const struct lttng_event_field *iter_field;
+ const struct lttng_kernel_event_field *iter_field;
- iter_field = &type->u.variant_nestable.choices[i];
+ iter_field = type->choices[i];
ret = _lttng_field_statedump(session, iter_field, nesting + 1);
if (ret)
return ret;
*/
static
int _lttng_variant_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
int ret;
ret = _lttng_variant_type_statedump(session,
- &field->type, nesting);
+ lttng_kernel_get_type_variant(field->type), nesting);
if (ret)
return ret;
return lttng_field_name_statedump(session, field, nesting);
*/
static
int _lttng_array_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
int ret;
- const struct lttng_type *elem_type;
+ const struct lttng_kernel_type_array *array_type;
+ const struct lttng_kernel_type_common *elem_type;
- WARN_ON_ONCE(field->type.atype != atype_array_nestable);
+ array_type = lttng_kernel_get_type_array(field->type);
+ WARN_ON_ONCE(!array_type);
- if (field->type.u.array_nestable.alignment) {
+ if (array_type->alignment) {
ret = print_tabs(session, nesting);
if (ret)
return ret;
ret = lttng_metadata_printf(session,
"struct { } align(%u) _%s_padding;\n",
- field->type.u.array_nestable.alignment * CHAR_BIT,
+ array_type->alignment * CHAR_BIT,
field->name);
if (ret)
return ret;
* Nested compound types: Only array of structures and variants are
* currently supported.
*/
- elem_type = field->type.u.array_nestable.elem_type;
- switch (elem_type->atype) {
- case atype_integer:
- case atype_struct_nestable:
- case atype_variant_nestable:
- ret = _lttng_type_statedump(session, elem_type, nesting);
+ elem_type = array_type->elem_type;
+ switch (elem_type->type) {
+ case lttng_kernel_type_integer:
+ case lttng_kernel_type_struct:
+ case lttng_kernel_type_variant:
+ ret = _lttng_type_statedump(session, elem_type,
+ array_type->encoding, nesting);
if (ret)
return ret;
break;
ret = lttng_metadata_printf(session,
" _%s[%u];\n",
field->name,
- field->type.u.array_nestable.length);
+ array_type->length);
return ret;
}
*/
static
int _lttng_sequence_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
int ret;
const char *length_name;
- const struct lttng_type *elem_type;
+ const struct lttng_kernel_type_sequence *sequence_type;
+ const struct lttng_kernel_type_common *elem_type;
- WARN_ON_ONCE(field->type.atype != atype_sequence_nestable);
+ sequence_type = lttng_kernel_get_type_sequence(field->type);
+ WARN_ON_ONCE(!sequence_type);
- length_name = field->type.u.sequence_nestable.length_name;
+ length_name = sequence_type->length_name;
- if (field->type.u.sequence_nestable.alignment) {
+ if (sequence_type->alignment) {
ret = print_tabs(session, nesting);
if (ret)
return ret;
ret = lttng_metadata_printf(session,
"struct { } align(%u) _%s_padding;\n",
- field->type.u.sequence_nestable.alignment * CHAR_BIT,
+ sequence_type->alignment * CHAR_BIT,
field->name);
if (ret)
return ret;
* Nested compound types: Only array of structures and variants are
* currently supported.
*/
- elem_type = field->type.u.sequence_nestable.elem_type;
- switch (elem_type->atype) {
- case atype_integer:
- case atype_struct_nestable:
- case atype_variant_nestable:
- ret = _lttng_type_statedump(session, elem_type, nesting);
+ elem_type = sequence_type->elem_type;
+ switch (elem_type->type) {
+ case lttng_kernel_type_integer:
+ case lttng_kernel_type_struct:
+ case lttng_kernel_type_variant:
+ ret = _lttng_type_statedump(session, elem_type,
+ sequence_type->encoding, nesting);
if (ret)
return ret;
break;
ret = lttng_metadata_printf(session,
" _%s[ _%s ];\n",
field->name,
- field->type.u.sequence_nestable.length_name);
+ sequence_type->length_name);
return ret;
}
*/
static
int _lttng_enum_type_statedump(struct lttng_session *session,
- const struct lttng_type *type,
+ const struct lttng_kernel_type_enum *type,
size_t nesting)
{
- const struct lttng_enum_desc *enum_desc;
- const struct lttng_type *container_type;
+ const struct lttng_kernel_enum_desc *enum_desc;
+ const struct lttng_kernel_type_common *container_type;
int ret;
unsigned int i, nr_entries;
- container_type = type->u.enum_nestable.container_type;
- if (container_type->atype != atype_integer) {
+ container_type = type->container_type;
+ if (container_type->type != lttng_kernel_type_integer) {
ret = -EINVAL;
goto end;
}
- enum_desc = type->u.enum_nestable.desc;
+ enum_desc = type->desc;
nr_entries = enum_desc->nr_entries;
ret = print_tabs(session, nesting);
ret = lttng_metadata_printf(session, "enum : ");
if (ret)
goto end;
- ret = _lttng_integer_type_statedump(session, container_type, 0);
+ ret = _lttng_integer_type_statedump(session, lttng_kernel_get_type_integer(container_type),
+ lttng_kernel_string_encoding_none, 0);
if (ret)
goto end;
ret = lttng_metadata_printf(session, " {\n");
goto end;
/* Dump all entries */
for (i = 0; i < nr_entries; i++) {
- const struct lttng_enum_entry *entry = &enum_desc->entries[i];
+ const struct lttng_kernel_enum_entry *entry = enum_desc->entries[i];
int j, len;
ret = print_tabs(session, nesting + 1);
*/
static
int _lttng_enum_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
int ret;
+ const struct lttng_kernel_type_enum *enum_type;
- ret = _lttng_enum_type_statedump(session, &field->type, nesting);
+ enum_type = lttng_kernel_get_type_enum(field->type);
+ WARN_ON_ONCE(!enum_type);
+ ret = _lttng_enum_type_statedump(session, enum_type, nesting);
if (ret)
return ret;
return lttng_field_name_statedump(session, field, nesting);
static
int _lttng_integer_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
int ret;
- ret = _lttng_integer_type_statedump(session, &field->type, nesting);
+ ret = _lttng_integer_type_statedump(session, lttng_kernel_get_type_integer(field->type),
+ lttng_kernel_string_encoding_none, nesting);
if (ret)
return ret;
return lttng_field_name_statedump(session, field, nesting);
static
int _lttng_string_type_statedump(struct lttng_session *session,
- const struct lttng_type *type,
+ const struct lttng_kernel_type_string *type,
size_t nesting)
{
int ret;
- WARN_ON_ONCE(type->atype != atype_string);
/* Default encoding is UTF8 */
ret = print_tabs(session, nesting);
if (ret)
return ret;
ret = lttng_metadata_printf(session,
"string%s",
- type->u.string.encoding == lttng_encode_ASCII ?
+ type->encoding == lttng_kernel_string_encoding_ASCII ?
" { encoding = ASCII; }" : "");
return ret;
}
static
int _lttng_string_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
+ const struct lttng_kernel_type_string *string_type;
int ret;
- WARN_ON_ONCE(field->type.atype != atype_string);
- ret = _lttng_string_type_statedump(session, &field->type, nesting);
+ string_type = lttng_kernel_get_type_string(field->type);
+ WARN_ON_ONCE(!string_type);
+ ret = _lttng_string_type_statedump(session, string_type, nesting);
if (ret)
return ret;
return lttng_field_name_statedump(session, field, nesting);
*/
static
int _lttng_type_statedump(struct lttng_session *session,
- const struct lttng_type *type,
+ const struct lttng_kernel_type_common *type,
+ enum lttng_kernel_string_encoding parent_encoding,
size_t nesting)
{
int ret = 0;
- switch (type->atype) {
- case atype_integer:
- ret = _lttng_integer_type_statedump(session, type, nesting);
+ switch (type->type) {
+ case lttng_kernel_type_integer:
+ ret = _lttng_integer_type_statedump(session,
+ lttng_kernel_get_type_integer(type),
+ parent_encoding, nesting);
break;
- case atype_enum_nestable:
- ret = _lttng_enum_type_statedump(session, type, nesting);
+ case lttng_kernel_type_enum:
+ ret = _lttng_enum_type_statedump(session,
+ lttng_kernel_get_type_enum(type),
+ nesting);
break;
- case atype_string:
- ret = _lttng_string_type_statedump(session, type, nesting);
+ case lttng_kernel_type_string:
+ ret = _lttng_string_type_statedump(session,
+ lttng_kernel_get_type_string(type),
+ nesting);
break;
- case atype_struct_nestable:
- ret = _lttng_struct_type_statedump(session, type, nesting);
+ case lttng_kernel_type_struct:
+ ret = _lttng_struct_type_statedump(session,
+ lttng_kernel_get_type_struct(type),
+ nesting);
break;
- case atype_variant_nestable:
- ret = _lttng_variant_type_statedump(session, type, nesting);
+ case lttng_kernel_type_variant:
+ ret = _lttng_variant_type_statedump(session,
+ lttng_kernel_get_type_variant(type),
+ nesting);
break;
/* Nested arrays and sequences are not supported yet. */
- case atype_array_nestable:
- case atype_sequence_nestable:
+ case lttng_kernel_type_array:
+ case lttng_kernel_type_sequence:
default:
WARN_ON_ONCE(1);
return -EINVAL;
*/
static
int _lttng_field_statedump(struct lttng_session *session,
- const struct lttng_event_field *field,
+ const struct lttng_kernel_event_field *field,
size_t nesting)
{
int ret = 0;
- switch (field->type.atype) {
- case atype_integer:
+ switch (field->type->type) {
+ case lttng_kernel_type_integer:
ret = _lttng_integer_field_statedump(session, field, nesting);
break;
- case atype_enum_nestable:
+ case lttng_kernel_type_enum:
ret = _lttng_enum_field_statedump(session, field, nesting);
break;
- case atype_string:
+ case lttng_kernel_type_string:
ret = _lttng_string_field_statedump(session, field, nesting);
break;
- case atype_struct_nestable:
+ case lttng_kernel_type_struct:
ret = _lttng_struct_field_statedump(session, field, nesting);
break;
- case atype_array_nestable:
+ case lttng_kernel_type_array:
ret = _lttng_array_field_statedump(session, field, nesting);
break;
- case atype_sequence_nestable:
+ case lttng_kernel_type_sequence:
ret = _lttng_sequence_field_statedump(session, field, nesting);
break;
- case atype_variant_nestable:
+ case lttng_kernel_type_variant:
ret = _lttng_variant_field_statedump(session, field, nesting);
break;
static
int _lttng_context_metadata_statedump(struct lttng_session *session,
- struct lttng_ctx *ctx)
+ struct lttng_kernel_ctx *ctx)
{
int ret = 0;
int i;
if (!ctx)
return 0;
for (i = 0; i < ctx->nr_fields; i++) {
- const struct lttng_ctx_field *field = &ctx->fields[i];
+ const struct lttng_kernel_ctx_field *field = &ctx->fields[i];
- ret = _lttng_field_statedump(session, &field->event_field, 2);
+ ret = _lttng_field_statedump(session, field->event_field, 2);
if (ret)
return ret;
}
int _lttng_fields_metadata_statedump(struct lttng_session *session,
struct lttng_event *event)
{
- const struct lttng_event_desc *desc = event->desc;
+ const struct lttng_kernel_event_desc *desc = event->desc;
int ret = 0;
int i;
for (i = 0; i < desc->nr_fields; i++) {
- const struct lttng_event_field *field = &desc->fields[i];
+ const struct lttng_kernel_event_field *field = desc->fields[i];
ret = _lttng_field_statedump(session, field, 2);
if (ret)
" name = \"%s\";\n"
" id = %u;\n"
" stream_id = %u;\n",
- event->desc->name,
+ event->desc->event_name,
event->id,
event->chan->id);
if (ret)
}
EXPORT_SYMBOL_GPL(lttng_counter_transport_unregister);
-#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0))
+#if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0))
enum cpuhp_state lttng_hp_prepare;
enum cpuhp_state lttng_hp_online;
cpuhp_remove_multi_state(lttng_hp_prepare);
}
-#else /* #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)) */
+#else /* #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */
static int lttng_init_cpu_hotplug(void)
{
return 0;
static void lttng_exit_cpu_hotplug(void)
{
}
-#endif /* #else #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4,10,0)) */
+#endif /* #else #if (LTTNG_LINUX_VERSION_CODE >= LTTNG_KERNEL_VERSION(4,10,0)) */
static int __init lttng_events_init(void)
projects / lttng-modules.git / blobdiff