X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=include%2Flttng%2Fust-events.h;h=938e12bcd248cdd31f9352d42c88de30fed34b46;hb=f9ec4a97118c6ba6001af5a85d63512e0fc441a1;hp=fd27396fb62f1a703c5854622763fd20e890053c;hpb=8e6ad0c1caf5bc9c8caef55f190ab9df38b06ebe;p=lttng-ust.git

diff --git a/include/lttng/ust-events.h b/include/lttng/ust-events.h
index fd27396f..938e12bc 100644
--- a/include/lttng/ust-events.h
+++ b/include/lttng/ust-events.h
@@ -56,7 +56,7 @@ extern "C" {
  * library, but the opposite is rejected: a newer tracepoint provider is
  * rejected by an older lttng-ust library.
  */
-#define LTTNG_UST_PROVIDER_MAJOR	1
+#define LTTNG_UST_PROVIDER_MAJOR	2
 #define LTTNG_UST_PROVIDER_MINOR	0
 
 struct lttng_channel;
@@ -503,6 +503,13 @@ struct lttng_channel_ops {
 	void (*channel_destroy)(struct lttng_channel *chan);
 	union {
 		void *_deprecated1;
+		/*
+		 * has_strcpy is needed by probe providers version 1.0 to
+		 * dynamically detect whether the LTTng-UST tracepoint
+		 * provider ABI implements event_strcpy. Starting from
+		 * probe providers version 2.0, the check is not needed,
+		 * but backward compatibility is provided for older versions.
+		 */
 		unsigned long has_strcpy:1;		/* ABI has strcpy */
 	} u;
 	void *_deprecated2;