X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng%2Fcommands%2Fenable_events.c;h=d973c5f6e1cc3579998aead3e2fba656f96ad428;hp=62f99a1fcfc760e659a3ab1c3a0e775fc79dccec;hb=4fd2697fac67a7dc7078bcaa9dad78b874d19b0b;hpb=a9c2df2bfce7a27b53ee5d5101f259f3e1f506b1

diff --git a/src/bin/lttng/commands/enable_events.c b/src/bin/lttng/commands/enable_events.c
index 62f99a1fc..d973c5f6e 100644
--- a/src/bin/lttng/commands/enable_events.c
+++ b/src/bin/lttng/commands/enable_events.c
@@ -965,6 +965,30 @@ static int enable_events(char *session_name)
 		}
 	}
 
+	/*
+	 * Adding a filter to a probe, function or userspace-probe would be
+	 * denied by the kernel tracer as it's not supported at the moment. We
+	 * do an early check here to warn the user.
+	 */
+	if (opt_filter && opt_kernel) {
+		switch (opt_event_type) {
+		case LTTNG_EVENT_ALL:
+		case LTTNG_EVENT_TRACEPOINT:
+		case LTTNG_EVENT_SYSCALL:
+			break;
+		case LTTNG_EVENT_PROBE:
+		case LTTNG_EVENT_USERSPACE_PROBE:
+		case LTTNG_EVENT_FUNCTION:
+			ERR("Filter expressions are not supported for %s events",
+					get_event_type_str(opt_event_type));
+			ret = CMD_ERROR;
+			goto error;
+		default:
+			ret = CMD_UNDEFINED;
+			goto error;
+		}
+	}
+
 	channel_name = opt_channel_name;
 
 	handle = lttng_create_handle(session_name, &dom);