X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=liblttng-ust%2Fltt-events.c;h=9d5d882794dbe9a555405a3c0f0f84b8714f93b0;hb=f7802f4bacd5a25cdaf46c5ccfb1f0bd1fdf9cfc;hp=71e959d64cf2d9840f885b91128865842cae1639;hpb=fe2d02f428e0113e1ea43e3642658b9674147412;p=lttng-ust.git

diff --git a/liblttng-ust/ltt-events.c b/liblttng-ust/ltt-events.c
index 71e959d6..9d5d8827 100644
--- a/liblttng-ust/ltt-events.c
+++ b/liblttng-ust/ltt-events.c
@@ -22,6 +22,7 @@
 #include <stddef.h>
 #include <inttypes.h>
 #include <time.h>
+#include <sys/prctl.h>
 #include "clock.h"
 
 #include <urcu-bp.h>
@@ -43,6 +44,8 @@
 #include "../libringbuffer/shm.h"
 #include "jhash.h"
 
+#define PROCNAME_LEN 17
+
 /*
  * The sessions mutex is the centralized mutex across UST tracing
  * control and probe registration. All operations within this file are
@@ -1088,6 +1091,7 @@ int _ltt_session_metadata_statedump(struct ltt_session *session)
 	struct ltt_channel *chan;
 	struct ltt_event *event;
 	int ret = 0;
+	char procname[PROCNAME_LEN] = "";
 
 	if (!CMM_ACCESS_ONCE(session->active))
 		return 0;
@@ -1140,6 +1144,22 @@ int _ltt_session_metadata_statedump(struct ltt_session *session)
 	if (ret)
 		goto end;
 
+	/* ignore error, just use empty string if error. */
+	(void) prctl(PR_GET_NAME, (unsigned long) procname, 0, 0, 0);
+	procname[PROCNAME_LEN - 1] = '\0';
+	ret = lttng_metadata_printf(session,
+		"env {\n"
+		"	vpid = %d;\n"
+		"	procname = \"%s\";\n"
+		"	domain = %s;\n"
+		"};\n\n",
+		(int) getpid(),
+		procname,
+		"ust"
+		);
+	if (ret)
+		goto end;
+
 	ret = lttng_metadata_printf(session,
 		"clock {\n"
 		"	name = %s;\n",