+ for (i = 0; i < size; i++) {
+ if (cur_pid != event_field_list[i].event.pid) {
+ cur_pid = event_field_list[i].event.pid;
+ cmdline = get_cmdline_by_pid(cur_pid);
+ if (cmdline == NULL) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+ MSG("\nPID: %d - Name: %s", cur_pid, cmdline);
+ free(cmdline);
+ /* Wipe current event since we are about to print a new PID. */
+ memset(&cur_event, 0, sizeof(cur_event));
+ }
+ if (strcmp(cur_event.name, event_field_list[i].event.name) != 0) {
+ print_events(&event_field_list[i].event);
+ memcpy(&cur_event, &event_field_list[i].event,
+ sizeof(cur_event));
+ }
+ print_event_field(&event_field_list[i]);
+ }
+
+ MSG("");
+ }
+
+error:
+ free(event_field_list);
+end:
+ lttng_destroy_handle(handle);
+ return ret;
+}
+
+/*
+ * Machine interface
+ * Print a list of kernel events
+ */
+static int mi_list_kernel_events(struct lttng_event *events, int count,
+ struct lttng_domain *domain)
+{
+ int ret, i;
+
+ /* Open domains element */
+ ret = mi_lttng_domains_open(writer);
+ if (ret) {
+ goto end;
+ }
+
+ /* Write domain */
+ ret = mi_lttng_domain(writer, domain, 1);
+ if (ret) {
+ goto end;
+ }
+
+ /* Open events */
+ ret = mi_lttng_events_open(writer);
+ if (ret) {
+ goto end;
+ }
+
+ for (i = 0; i < count; i++) {
+ ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type);
+ if (ret) {
+ goto end;
+ }
+ }
+
+ /* close events, domain and domains */
+ ret = mi_lttng_close_multi_element(writer, 3);
+ if (ret) {
+ goto end;
+ }
+
+end:
+ return ret;
+}
+
+/*
+ * Ask for all trace events in the kernel
+ */
+static int list_kernel_events(void)
+{
+ int i, size, ret = CMD_SUCCESS;
+ struct lttng_domain domain;
+ struct lttng_handle *handle;
+ struct lttng_event *event_list;
+
+ memset(&domain, 0, sizeof(domain));
+
+ DBG("Getting kernel tracing events");
+
+ domain.type = LTTNG_DOMAIN_KERNEL;
+
+ handle = lttng_create_handle(NULL, &domain);
+ if (handle == NULL) {
+ ret = CMD_ERROR;
+ goto error;
+ }
+
+ size = lttng_list_tracepoints(handle, &event_list);
+ if (size < 0) {
+ ERR("Unable to list kernel events: %s", lttng_strerror(size));
+ lttng_destroy_handle(handle);
+ return CMD_ERROR;
+ }
+
+ if (lttng_opt_mi) {
+ /* Mi print */
+ ret = mi_list_kernel_events(event_list, size, &domain);
+ if (ret) {
+ ret = CMD_ERROR;
+ goto end;
+ }
+ } else {
+ MSG("Kernel events:\n-------------");
+
+ for (i = 0; i < size; i++) {
+ print_events(&event_list[i]);
+ }