X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Flttng-syscalls.c;h=de4dbacefc5c23e7331081696585e4a278b82a7c;hb=873a97436b75e272560fc164813971c8b5461eaa;hp=3208cd4d600696af741eafd6483bd3411f3a5cfa;hpb=83006ee0d75381816540c339e5dda7aba72fafa3;p=lttng-modules.git

diff --git a/src/lttng-syscalls.c b/src/lttng-syscalls.c
index 3208cd4d..de4dbace 100644
--- a/src/lttng-syscalls.c
+++ b/src/lttng-syscalls.c
@@ -537,7 +537,6 @@ int lttng_create_syscall_event_if_missing(const struct trace_syscall_entry *tabl
 	enum sc_type type)
 {
 	struct lttng_event_ht *events_ht = lttng_get_event_ht_from_enabler(&syscall_event_enabler->parent);
-	struct lttng_kernel_syscall_table *syscall_table = get_syscall_table_from_enabler(&syscall_event_enabler->parent);
 	struct lttng_kernel_channel_buffer *chan = syscall_event_enabler->chan;
 	unsigned int i;
 
@@ -555,16 +554,15 @@ int lttng_create_syscall_event_if_missing(const struct trace_syscall_entry *tabl
 			/* Unknown syscall */
 			continue;
 		}
-		if (lttng_desc_match_enabler(desc,
-				lttng_event_recorder_enabler_as_enabler(syscall_event_enabler)) <= 0)
+		if (!lttng_desc_match_enabler(desc,
+				lttng_event_recorder_enabler_as_enabler(syscall_event_enabler)))
 			continue;
 		/*
 		 * Check if already created.
 		 */
 		head = utils_borrow_hash_table_bucket(events_ht->table, LTTNG_EVENT_HT_SIZE, desc->event_name);
 		lttng_hlist_for_each_entry(event_priv, head, hlist_node) {
-			if (event_priv->desc == desc
-				&& get_syscall_table_from_event(event_priv->pub) == syscall_table)
+			if (lttng_event_enabler_desc_match_event(&syscall_event_enabler->parent, desc, event_priv->pub))
 				found = true;
 		}
 		if (found)
@@ -753,7 +751,7 @@ int lttng_syscalls_populate_events(struct lttng_event_enabler_common *syscall_ev
 /*
  * Should be called with sessions lock held.
  */
-int lttng_syscalls_register_event(struct lttng_event_enabler_common *syscall_event_enabler)
+int lttng_event_enabler_create_syscall_events_if_missing(struct lttng_event_enabler_common *syscall_event_enabler)
 {
 	struct lttng_kernel_syscall_table *syscall_table = get_syscall_table_from_enabler(syscall_event_enabler);
 	int ret;
@@ -798,8 +796,6 @@ int lttng_syscalls_register_event(struct lttng_event_enabler_common *syscall_eve
 	if (ret)
 		return ret;
 
-	wrapper_vmalloc_sync_mappings();
-
 	if (!syscall_table->sys_enter_registered) {
 		ret = lttng_wrapper_tracepoint_probe_register("sys_enter",
 				(void *) syscall_entry_event_probe, syscall_table);
@@ -882,8 +878,7 @@ int create_unknown_event_notifier(
 	 */
 	head = utils_borrow_hash_table_bucket(events_ht->table, LTTNG_EVENT_HT_SIZE, desc->event_name);
 	lttng_hlist_for_each_entry(event_priv, head, hlist_node) {
-		if (event_priv->desc == desc &&
-				event_priv->user_token == base_enabler->user_token)
+		if (lttng_event_enabler_desc_match_event(base_enabler, desc, event_priv->pub))
 			found = true;
 	}
 	if (found)
@@ -956,8 +951,7 @@ static int create_matching_event_notifiers(
 		 */
 		head = utils_borrow_hash_table_bucket(events_ht->table, LTTNG_EVENT_HT_SIZE, desc->event_name);
 		lttng_hlist_for_each_entry(event_priv, head, hlist_node) {
-			if (event_priv->desc == desc
-				&& event_priv->user_token == syscall_event_notifier_enabler->parent.user_token)
+			if (lttng_event_enabler_desc_match_event(&syscall_event_notifier_enabler->parent, desc, event_priv->pub))
 				found = 1;
 		}
 		if (found)
@@ -1401,6 +1395,29 @@ int lttng_syscall_filter_disable_event(struct lttng_kernel_event_common *event)
 	return 0;
 }
 
+void lttng_syscall_table_set_wildcard_all(struct lttng_event_enabler_common *event_enabler)
+{
+	struct lttng_kernel_syscall_table *syscall_table = get_syscall_table_from_enabler(event_enabler);
+	enum lttng_kernel_abi_syscall_entryexit entryexit;
+	int enabled = event_enabler->enabled;
+
+	if (event_enabler->event_param.instrumentation != LTTNG_KERNEL_ABI_SYSCALL)
+		return;
+	if (event_enabler->event_param.u.syscall.abi != LTTNG_KERNEL_ABI_SYSCALL_ABI_ALL)
+		return;
+	if (event_enabler->event_param.u.syscall.match != LTTNG_KERNEL_ABI_SYSCALL_MATCH_NAME)
+		return;
+	if (strcmp(event_enabler->event_param.name, "*"))
+		return;
+
+	entryexit = event_enabler->event_param.u.syscall.entryexit;
+	if (entryexit == LTTNG_KERNEL_ABI_SYSCALL_ENTRY || entryexit == LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT)
+		WRITE_ONCE(syscall_table->syscall_all_entry, enabled);
+
+	if (entryexit == LTTNG_KERNEL_ABI_SYSCALL_EXIT || entryexit == LTTNG_KERNEL_ABI_SYSCALL_ENTRYEXIT)
+		WRITE_ONCE(syscall_table->syscall_all_exit, enabled);
+}
+
 static
 const struct trace_syscall_entry *syscall_list_get_entry(loff_t *pos)
 {