Expose /proc/lttng file

[lttng-modules.git] / ltt-events.h

diff --git a/ltt-events.h b/ltt-events.h
index 98cfae03017f5689ba79753864d8342487a47885..395e410e40b33daa175e45f4ee3a49c6dd300fbe 100644 (file)
--- a/ltt-events.h
+++ b/ltt-events.h
@@ -241,6 +241,7 @@ struct ltt_channel {
        struct list_head list;          /* Channel list */
        struct ltt_channel_ops *ops;
        struct ltt_transport *transport;
+       struct ltt_event **sc_table;    /* for syscall tracing */
        int header_type;                /* 0: unset, 1: compact, 2: large */
        int metadata_dumped:1;
 };
@@ -297,6 +298,22 @@ const struct lttng_event_desc *ltt_event_get(const char *name);
 void ltt_event_put(const struct lttng_event_desc *desc);
 int ltt_probes_init(void);
 void ltt_probes_exit(void);
+
+#ifdef SYSCALL_DETAIL
+int lttng_syscalls_register(struct ltt_channel *chan, void *filter);
+int lttng_syscalls_unregister(struct ltt_channel *chan);
+#else
+static inline int lttng_syscalls_register(struct ltt_channel *chan, void *filter)
+{
+       return -ENOSYS;
+}
+
+static inline int lttng_syscalls_unregister(struct ltt_channel *chan)
+{
+       return 0;
+}
+#endif
+
 struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
 int lttng_find_context(struct lttng_ctx *ctx, const char *name);
 void lttng_remove_context_field(struct lttng_ctx **ctx,
@@ -311,7 +328,7 @@ int lttng_add_tid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_vtid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_ppid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_vppid_to_ctx(struct lttng_ctx **ctx);
-#ifdef CONFIG_PERF_EVENTS
+#if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33))
 int lttng_add_perf_counter_to_ctx(uint32_t type,
                                  uint64_t config,
                                  const char *name,