event-rule: introduce event-rule kprobe

[lttng-tools.git] / include / lttng / event-rule / kprobe-internal.h

diff --git a/include/lttng/event-rule/kprobe-internal.h b/include/lttng/event-rule/kprobe-internal.h
new file mode 100644 (file)
index 0000000..7d2ecc8
--- /dev/null
+++ b/include/lttng/event-rule/kprobe-internal.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2019 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
+ *
+ * SPDX-License-Identifier: LGPL-2.1-only
+ *
+ */
+
+#ifndef LTTNG_EVENT_RULE_KPROBE_INTERNAL_H
+#define LTTNG_EVENT_RULE_KPROBE_INTERNAL_H
+
+#include <common/payload-view.h>
+#include <common/macros.h>
+#include <lttng/event-rule/event-rule-internal.h>
+#include <lttng/event-rule/kprobe.h>
+
+struct lttng_event_rule_kprobe {
+       struct lttng_event_rule parent;
+       char *name;
+       struct lttng_kernel_probe_location *location;
+};
+
+struct lttng_event_rule_kprobe_comm {
+       /* Includes terminator `\0`. */
+       uint32_t name_len;
+       uint32_t location_len;
+       /*
+        * Payload is composed of, in that order:
+        *   - name (null terminated),
+        *   - kernel probe location object.
+        */
+       char payload[];
+} LTTNG_PACKED;
+
+LTTNG_HIDDEN
+ssize_t lttng_event_rule_kprobe_create_from_payload(
+               struct lttng_payload_view *payload,
+               struct lttng_event_rule **rule);
+
+#endif /* LTTNG_EVENT_RULE_KPROBE_INTERNAL_H */