X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fcommon%2Fevent-rule%2Fsyscall.c;h=98c272d40c8ece449793c6a9e7d60beeea90bbcf;hb=cfb1c9bcab7801380b6ffbab9e505b861072254c;hp=b2feb2c6ecf4c772049d9c41d304544f185959d1;hpb=58daac01d91347336f24e1fc1cacd4e7a3101e93;p=lttng-tools.git

diff --git a/src/common/event-rule/syscall.c b/src/common/event-rule/syscall.c
index b2feb2c6e..98c272d40 100644
--- a/src/common/event-rule/syscall.c
+++ b/src/common/event-rule/syscall.c
@@ -12,6 +12,8 @@
 #include <common/payload.h>
 #include <common/payload-view.h>
 #include <common/runas.h>
+#include <common/hashtable/hashtable.h>
+#include <common/hashtable/utils.h>
 #include <lttng/event-rule/event-rule-internal.h>
 #include <lttng/event-rule/syscall-internal.h>
 
@@ -215,15 +217,35 @@ lttng_event_rule_syscall_get_internal_filter_bytecode(
 	return syscall->internal_filter.bytecode;
 }
 
-static struct lttng_event_exclusion *
-lttng_event_rule_syscall_generate_exclusions(
+static enum lttng_event_rule_generate_exclusions_status
+lttng_event_rule_syscall_generate_exclusions(const struct lttng_event_rule *rule,
+		struct lttng_event_exclusion **exclusions)
+{
+	/* Unsupported. */
+	*exclusions = NULL;
+	return LTTNG_EVENT_RULE_GENERATE_EXCLUSIONS_STATUS_NONE;
+}
+
+static unsigned long
+lttng_event_rule_syscall_hash(
 		const struct lttng_event_rule *rule)
 {
-	/* Not supported. */
-	return NULL;
+	unsigned long hash;
+	struct lttng_event_rule_syscall *syscall_rule =
+			container_of(rule, typeof(*syscall_rule), parent);
+
+	hash = hash_key_ulong((void *) LTTNG_EVENT_RULE_TYPE_SYSCALL,
+			lttng_ht_seed);
+	hash ^= hash_key_str(syscall_rule->pattern, lttng_ht_seed);
+	if (syscall_rule->filter_expression) {
+		hash ^= hash_key_str(syscall_rule->filter_expression,
+				lttng_ht_seed);
+	}
+
+	return hash;
 }
 
-struct lttng_event_rule *lttng_event_rule_syscall_create()
+struct lttng_event_rule *lttng_event_rule_syscall_create(void)
 {
 	struct lttng_event_rule *rule = NULL;
 	struct lttng_event_rule_syscall *syscall_rule;
@@ -248,6 +270,7 @@ struct lttng_event_rule *lttng_event_rule_syscall_create()
 			lttng_event_rule_syscall_get_internal_filter_bytecode;
 	syscall_rule->parent.generate_exclusions =
 			lttng_event_rule_syscall_generate_exclusions;
+	syscall_rule->parent.hash = lttng_event_rule_syscall_hash;
 end:
 	return rule;
 }