/*
- * lttng-probes.c
+ * SPDX-License-Identifier: LGPL-2.1-only
*
- * Holds LTTng probes registry.
- *
- * Copyright 2010-2012 (c) - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; only
- * version 2.1 of the License.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
+ * Copyright 2010-2012 (C) Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
*
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ * Holds LTTng probes registry.
*/
#define _LGPL_SOURCE
#include <lttng/tracepoint.h>
#include "tracepoint-internal.h"
#include <assert.h>
-#include <helper.h>
+#include <ust-helper.h>
#include <ctype.h>
#include "lttng-tracer-core.h"
#include "jhash.h"
#include "error.h"
+#include "ust-events-internal.h"
/*
* probe list is protected by ust_lock()/ust_unlock().
* Called under ust lock.
*/
static
-int check_event_provider(struct lttng_probe_desc *desc)
+int check_event_provider(struct lttng_ust_probe_desc *desc)
{
int i;
size_t provider_name_len;
provider_name_len = strnlen(desc->provider,
- LTTNG_UST_SYM_NAME_LEN - 1);
+ LTTNG_UST_ABI_SYM_NAME_LEN - 1);
for (i = 0; i < desc->nr_events; i++) {
if (strncmp(desc->event_desc[i]->name,
desc->provider,
* Called under ust lock.
*/
static
-void lttng_lazy_probe_register(struct lttng_probe_desc *desc)
+void lttng_lazy_probe_register(struct lttng_ust_probe_desc *desc)
{
- struct lttng_probe_desc *iter;
+ struct lttng_ust_probe_desc *iter;
struct cds_list_head *probe_list;
/*
*/
/*
- * We sort the providers by struct lttng_probe_desc pointer
+ * We sort the providers by struct lttng_ust_probe_desc pointer
* address.
*/
probe_list = &_probe_list;
static
void fixup_lazy_probes(void)
{
- struct lttng_probe_desc *iter, *tmp;
+ struct lttng_ust_probe_desc *iter, *tmp;
int ret;
lazy_nesting++;
}
static
-const struct lttng_probe_desc *find_provider(const char *provider)
-{
- struct lttng_probe_desc *iter;
- struct cds_list_head *probe_list;
-
- probe_list = lttng_get_probe_list_head();
- cds_list_for_each_entry(iter, probe_list, head) {
- if (!strcmp(iter->provider, provider))
- return iter;
- }
- return NULL;
-}
-
-static
-int check_provider_version(struct lttng_probe_desc *desc)
+int check_provider_version(struct lttng_ust_probe_desc *desc)
{
/*
* Check tracepoint provider version compatibility.
}
-int lttng_probe_register(struct lttng_probe_desc *desc)
+int lttng_ust_probe_register(struct lttng_ust_probe_desc *desc)
{
int ret = 0;
+ lttng_ust_fixup_tls();
+
/*
* If version mismatch, don't register, but don't trigger assert
* on caller. The version check just prints an error.
ust_lock_nocheck();
- /*
- * Check if the provider has already been registered.
- */
- if (find_provider(desc->provider)) {
- ret = -EEXIST;
- goto end;
- }
cds_list_add(&desc->lazy_init_head, &lazy_probe_init);
desc->lazy = 1;
DBG("adding probe %s containing %u events to lazy registration list",
*/
if (lttng_session_active())
fixup_lazy_probes();
-end:
+
+ lttng_fix_pending_event_notifiers();
+
ust_unlock();
return ret;
}
-/* Backward compatibility with UST 2.0 */
-int ltt_probe_register(struct lttng_probe_desc *desc)
+void lttng_ust_probe_unregister(struct lttng_ust_probe_desc *desc)
{
- return lttng_probe_register(desc);
-}
+ lttng_ust_fixup_tls();
-void lttng_probe_unregister(struct lttng_probe_desc *desc)
-{
if (!check_provider_version(desc))
return;
cds_list_del(&desc->head);
else
cds_list_del(&desc->lazy_init_head);
- DBG("just unregistered probe %s", desc->provider);
- ust_unlock();
-}
-/* Backward compatibility with UST 2.0 */
-void ltt_probe_unregister(struct lttng_probe_desc *desc)
-{
- lttng_probe_unregister(desc);
+ lttng_probe_provider_unregister_events(desc);
+ DBG("just unregistered probes of provider %s", desc->provider);
+
+ ust_unlock();
}
void lttng_probes_prune_event_list(struct lttng_ust_tracepoint_list *list)
*/
int lttng_probes_get_event_list(struct lttng_ust_tracepoint_list *list)
{
- struct lttng_probe_desc *probe_desc;
+ struct lttng_ust_probe_desc *probe_desc;
int i;
struct cds_list_head *probe_list;
cds_list_add(&list_entry->head, &list->head);
strncpy(list_entry->tp.name,
probe_desc->event_desc[i]->name,
- LTTNG_UST_SYM_NAME_LEN);
- list_entry->tp.name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
+ LTTNG_UST_ABI_SYM_NAME_LEN);
+ list_entry->tp.name[LTTNG_UST_ABI_SYM_NAME_LEN - 1] = '\0';
if (!probe_desc->event_desc[i]->loglevel) {
list_entry->tp.loglevel = TRACE_DEFAULT;
} else {
* Return current iteration position, advance internal iterator to next.
* Return NULL if end of list.
*/
-struct lttng_ust_tracepoint_iter *
+struct lttng_ust_abi_tracepoint_iter *
lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list)
{
struct tp_list_entry *entry;
*/
int lttng_probes_get_field_list(struct lttng_ust_field_list *list)
{
- struct lttng_probe_desc *probe_desc;
+ struct lttng_ust_probe_desc *probe_desc;
int i;
struct cds_list_head *probe_list;
CDS_INIT_LIST_HEAD(&list->head);
cds_list_for_each_entry(probe_desc, probe_list, head) {
for (i = 0; i < probe_desc->nr_events; i++) {
- const struct lttng_event_desc *event_desc =
+ const struct lttng_ust_event_desc *event_desc =
probe_desc->event_desc[i];
int j;
cds_list_add(&list_entry->head, &list->head);
strncpy(list_entry->field.event_name,
event_desc->name,
- LTTNG_UST_SYM_NAME_LEN);
- list_entry->field.event_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
+ LTTNG_UST_ABI_SYM_NAME_LEN);
+ list_entry->field.event_name[LTTNG_UST_ABI_SYM_NAME_LEN - 1] = '\0';
list_entry->field.field_name[0] = '\0';
- list_entry->field.type = LTTNG_UST_FIELD_OTHER;
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_OTHER;
if (!event_desc->loglevel) {
list_entry->field.loglevel = TRACE_DEFAULT;
} else {
}
for (j = 0; j < event_desc->nr_fields; j++) {
- const struct lttng_event_field *event_field =
- &event_desc->fields[j];
+ const struct lttng_ust_event_field *event_field =
+ event_desc->fields[j];
struct tp_field_list_entry *list_entry;
list_entry = zmalloc(sizeof(*list_entry));
cds_list_add(&list_entry->head, &list->head);
strncpy(list_entry->field.event_name,
event_desc->name,
- LTTNG_UST_SYM_NAME_LEN);
- list_entry->field.event_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
+ LTTNG_UST_ABI_SYM_NAME_LEN);
+ list_entry->field.event_name[LTTNG_UST_ABI_SYM_NAME_LEN - 1] = '\0';
strncpy(list_entry->field.field_name,
event_field->name,
- LTTNG_UST_SYM_NAME_LEN);
- list_entry->field.field_name[LTTNG_UST_SYM_NAME_LEN - 1] = '\0';
+ LTTNG_UST_ABI_SYM_NAME_LEN);
+ list_entry->field.field_name[LTTNG_UST_ABI_SYM_NAME_LEN - 1] = '\0';
switch (event_field->type.atype) {
case atype_integer:
- list_entry->field.type = LTTNG_UST_FIELD_INTEGER;
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_INTEGER;
break;
case atype_string:
- list_entry->field.type = LTTNG_UST_FIELD_STRING;
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_STRING;
break;
- case atype_array:
- if (event_field->type.u.array.elem_type.atype != atype_integer
- || event_field->type.u.array.elem_type.u.basic.integer.encoding == lttng_encode_none)
- list_entry->field.type = LTTNG_UST_FIELD_OTHER;
+ case atype_array_nestable:
+ if (event_field->type.u.array_nestable.elem_type->atype != atype_integer
+ || event_field->type.u.array_nestable.elem_type->u.integer.encoding == lttng_encode_none)
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_OTHER;
else
- list_entry->field.type = LTTNG_UST_FIELD_STRING;
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_STRING;
break;
- case atype_sequence:
- if (event_field->type.u.sequence.elem_type.atype != atype_integer
- || event_field->type.u.sequence.elem_type.u.basic.integer.encoding == lttng_encode_none)
- list_entry->field.type = LTTNG_UST_FIELD_OTHER;
+ case atype_sequence_nestable:
+ if (event_field->type.u.sequence_nestable.elem_type->atype != atype_integer
+ || event_field->type.u.sequence_nestable.elem_type->u.integer.encoding == lttng_encode_none)
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_OTHER;
else
- list_entry->field.type = LTTNG_UST_FIELD_STRING;
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_STRING;
break;
case atype_float:
- list_entry->field.type = LTTNG_UST_FIELD_FLOAT;
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_FLOAT;
break;
- case atype_enum:
- list_entry->field.type = LTTNG_UST_FIELD_ENUM;
+ case atype_enum_nestable:
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_ENUM;
break;
default:
- list_entry->field.type = LTTNG_UST_FIELD_OTHER;
+ list_entry->field.type = LTTNG_UST_ABI_FIELD_OTHER;
}
if (!event_desc->loglevel) {
list_entry->field.loglevel = TRACE_DEFAULT;
* Return current iteration position, advance internal iterator to next.
* Return NULL if end of list.
*/
-struct lttng_ust_field_iter *
+struct lttng_ust_abi_field_iter *
lttng_ust_field_list_get_iter_next(struct lttng_ust_field_list *list)
{
struct tp_field_list_entry *entry;
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