From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Sat, 24 Apr 2021 00:05:40 +0000 (-0400)
Subject: tracepoint: Declare tracepoint module register/unregister API
X-Git-Tag: v2.13.0-rc1~3
X-Git-Url: https://git.lttng.org/?p=lttng-ust.git;a=commitdiff_plain;h=8812e921083147264ac4a299748ca6d4077e5233

tracepoint: Declare tracepoint module register/unregister API

The registration/unregistration API is part of the ABI, and used through
dlopen/dlsym, but its declaration is not exposed in the API.

Add the missing declarations.

Also remove useless "extern" on
lttng_ust_tracepoint_provider_register/unregister.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Change-Id: I0aecdf02c0dd604f960dc49ec4aa71613474c9b6
---

diff --git a/include/lttng/tracepoint.h b/include/lttng/tracepoint.h
index f2a65777..c59a96c9 100644
--- a/include/lttng/tracepoint.h
+++ b/include/lttng/tracepoint.h
@@ -230,11 +230,24 @@ void lttng_ust_tracepoint_unregister_##_provider##___##_name(char *provider_name
 	lttng_ust_tracepoint_provider_unregister(provider_name, event_name, func, data);		\
 }
 
-extern int lttng_ust_tracepoint_provider_register(const char *provider_name, const char *event_name,
+/*
+ * Registration of tracepoint provider probe functions with
+ * lttng_ust_tracepoint_provider_register, unregistration with
+ * lttng_ust_tracepoint_provider_unregister.
+ */
+int lttng_ust_tracepoint_provider_register(const char *provider_name, const char *event_name,
 		void (*func)(void), void *data, const char *signature);
-extern int lttng_ust_tracepoint_provider_unregister(const char *provider_name, const char *event_name,
+int lttng_ust_tracepoint_provider_unregister(const char *provider_name, const char *event_name,
 		void (*func)(void), void *data);
 
+/*
+ * Registration of tracepoint instrumentation modules with lttng_ust_tracepoint_module_register,
+ * unregistration with lttng_ust_tracepoint_module_unregister.
+ */
+int lttng_ust_tracepoint_module_register(struct lttng_ust_tracepoint * const *tracepoints_start,
+                             int tracepoints_count);
+int lttng_ust_tracepoint_module_unregister(struct lttng_ust_tracepoint * const *tracepoints_start);
+
 /*
  * tracepoint dynamic linkage handling (callbacks). Hidden visibility:
  * shared across objects in a module/main executable.