Add syscall listing support

[lttng-tools.git] / include / lttng / event.h

diff --git a/include/lttng/event.h b/include/lttng/event.h
index b3bb2150766f4f2558707f086c251c8ec68b5258..f1d8e6581252d3c03165e469ada60c1b47b21125 100644 (file)
--- a/include/lttng/event.h
+++ b/include/lttng/event.h
@@ -133,6 +133,11 @@ enum lttng_event_field_type {
        LTTNG_EVENT_FIELD_STRING              = 4,
 };
 
+enum lttng_event_flag {
+       LTTNG_EVENT_FLAG_SYSCALL_32           = (1U << 0),
+       LTTNG_EVENT_FLAG_SYSCALL_64           = (1U << 1),
+};
+
 /*
  * Perf counter attributes
  *
@@ -198,7 +203,7 @@ struct lttng_event_function_attr {
  *
  * The structures should be initialized to zero before use.
  */
-#define LTTNG_EVENT_PADDING1               14
+#define LTTNG_EVENT_PADDING1               10
 #define LTTNG_EVENT_PADDING2               LTTNG_SYMBOL_NAME_LEN + 32
 struct lttng_event {
        enum lttng_event_type type;
@@ -212,6 +217,9 @@ struct lttng_event {
        unsigned char filter;   /* filter enabled ? */
        unsigned char exclusion; /* exclusions added ? */
 
+       /* Event flag, from 2.6 and above. */
+       enum lttng_event_flag flags;
+
        char padding[LTTNG_EVENT_PADDING1];
 
        /* Per event type configuration */
@@ -266,6 +274,15 @@ extern int lttng_list_tracepoints(struct lttng_handle *handle,
 extern int lttng_list_tracepoint_fields(struct lttng_handle *handle,
                struct lttng_event_field **fields);
 
+/*
+ * List the available kernel syscall.
+ *
+ * Return the size (number of entries) of the allocated "lttng_event" array.
+ * All events in will be of type syscall. Caller must free events. On error a
+ * negative LTTng error code is returned.
+ */
+extern int lttng_list_syscalls(struct lttng_event **events);
+
 /*
  * Add context to event(s) for a specific channel (or for all).
  *