X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Flib%2Flttng-ctl%2Flttng-ctl.c;h=ff57a0d1a7a70237e396274b8a4847f1194beb3d;hb=c0d10b4f0e9d89a9163471e73ccc1903a3166d3f;hp=c5aada5bec9b46af9e26ce74c606f1a74553a2bf;hpb=6e911cad03751b6814fddd65b19a592acdc2b7b7;p=lttng-tools.git

diff --git a/src/lib/lttng-ctl/lttng-ctl.c b/src/lib/lttng-ctl/lttng-ctl.c
index c5aada5be..ff57a0d1a 100644
--- a/src/lib/lttng-ctl/lttng-ctl.c
+++ b/src/lib/lttng-ctl/lttng-ctl.c
@@ -919,10 +919,10 @@ int lttng_enable_event_with_exclusions(struct lttng_handle *handle,
 				sizeof(lsm.u.enable.channel_name));
 	}
 
-	if (ev->name[0] != '\0') {
-		lsm.cmd_type = LTTNG_ENABLE_EVENT;
-	} else {
-		lsm.cmd_type = LTTNG_ENABLE_ALL_EVENT;
+	lsm.cmd_type = LTTNG_ENABLE_EVENT;
+	if (ev->name[0] == '\0') {
+		/* Enable all events */
+		lttng_ctl_copy_string(ev->name, "*", sizeof(ev->name));
 	}
 
 	lttng_ctl_copy_lttng_domain(&lsm.domain, &handle->domain);
@@ -1081,10 +1081,10 @@ int lttng_disable_event_ext(struct lttng_handle *handle,
 				sizeof(lsm.u.disable.channel_name));
 	}
 
-	if (ev->name[0] != '\0') {
-		lsm.cmd_type = LTTNG_DISABLE_EVENT;
-	} else {
-		lsm.cmd_type = LTTNG_DISABLE_ALL_EVENT;
+	lsm.cmd_type = LTTNG_DISABLE_EVENT;
+	if (ev->name[0] == '\0') {
+		/* Disable all events */
+		lttng_ctl_copy_string(ev->name, "*", sizeof(ev->name));
 	}
 
 	lttng_ctl_copy_lttng_domain(&lsm.domain, &handle->domain);
@@ -1323,6 +1323,35 @@ int lttng_list_tracepoint_fields(struct lttng_handle *handle,
 	return ret / sizeof(struct lttng_event_field);
 }
 
+/*
+ *  Lists all available kernel system calls. Allocates and sets the contents of
+ *  the events array.
+ *
+ *  Returns the number of lttng_event entries in events; on error, returns a
+ *  negative value.
+ */
+int lttng_list_syscalls(struct lttng_event **events)
+{
+	int ret;
+	struct lttcomm_session_msg lsm;
+
+	if (!events) {
+		return -LTTNG_ERR_INVALID;
+	}
+
+	memset(&lsm, 0, sizeof(lsm));
+	lsm.cmd_type = LTTNG_LIST_SYSCALLS;
+	/* Force kernel domain for system calls. */
+	lsm.domain.type = LTTNG_DOMAIN_KERNEL;
+
+	ret = lttng_ctl_ask_sessiond(&lsm, (void **) events);
+	if (ret < 0) {
+		return ret;
+	}
+
+	return ret / sizeof(struct lttng_event);
+}
+
 /*
  *  Returns a human readable string describing
  *  the error code (a negative value).