return BT_CB_ERROR_STOP;
}
+enum bt_cb_ret handle_kprobes(struct bt_ctf_event *call_data, void *private_data)
+{
+ int i;
+ struct kprobes *kprobe;
+
+ /* for kprobes */
+ for (i = 0; i < lttngtop.kprobes_table->len; i++) {
+ kprobe = g_ptr_array_index(lttngtop.kprobes_table, i);
+ if (strcmp(bt_ctf_event_name(call_data), kprobe->probe_name) == 0) {
+ kprobe->count++;
+ }
+ }
+
+ return BT_CB_OK;
+}
+
/*
* hook on each event to check the timestamp and refresh the display if
* necessary
lttngtop.process_table = g_ptr_array_new();
lttngtop.files_table = g_ptr_array_new();
lttngtop.cpu_table = g_ptr_array_new();
+ lttngtop.kprobes_table = g_ptr_array_new();
}
void usage(FILE *fp)
{
struct bt_ctf_iter *iter;
struct bt_iter_pos begin_pos;
+ struct kprobes *kprobe;
const struct bt_ctf_event *event;
+ int i;
int ret = 0;
begin_pos.type = BT_SEEK_BEGIN;
"lttng_statedump_file_descriptor"),
NULL, 0, handle_statedump_file_descriptor,
NULL, NULL, NULL);
+
+ /* for kprobes */
+ for (i = 0; i < lttngtop.kprobes_table->len; i++) {
+ kprobe = g_ptr_array_index(lttngtop.kprobes_table, i);
+ bt_ctf_iter_add_callback(iter,
+ g_quark_from_static_string(
+ kprobe->probe_name),
+ NULL, 0, handle_kprobes,
+ NULL, NULL, NULL);
+ }
}
while ((event = bt_ctf_iter_read_event(iter)) != NULL) {
return ret;
}
+int enable_kprobes(struct lttng_handle *handle, char *channel_name)
+{
+ struct lttng_event ev;
+ struct kprobes *kprobe;
+ int ret = 0;
+ int i;
+
+ /*
+ kprobe = g_new0(struct kprobes, 1);
+ kprobe->probe_addr = 0;
+ kprobe->probe_offset = 0;
+ asprintf(&kprobe->probe_name, "probe_sys_open");
+ asprintf(&kprobe->symbol_name, "sys_open");
+ g_ptr_array_add(lttngtop.kprobes_table, kprobe);
+
+ kprobe = g_new0(struct kprobes, 1);
+ kprobe->probe_addr = 0;
+ kprobe->probe_offset = 0;
+ asprintf(&kprobe->probe_name, "probe_sys_close");
+ asprintf(&kprobe->symbol_name, "sys_close");
+ g_ptr_array_add(lttngtop.kprobes_table, kprobe);
+ */
+
+ for (i = 0; i < lttngtop.kprobes_table->len; i++) {
+ kprobe = g_ptr_array_index(lttngtop.kprobes_table, i);
+
+ memset(&ev, '\0', sizeof(struct lttng_event));
+ ev.type = LTTNG_EVENT_PROBE;
+ sprintf(ev.attr.probe.symbol_name, "%s", kprobe->symbol_name);
+ sprintf(ev.name, "%s", kprobe->probe_name);
+ ev.attr.probe.addr = kprobe->probe_addr;
+ ev.attr.probe.offset = kprobe->probe_offset;
+ if ((ret = lttng_enable_event(handle, &ev, channel_name)) < 0) {
+ fprintf(stderr,"error enabling kprobes : %s\n",
+ helper_lttcomm_get_readable_code(ret));
+ goto end;
+ }
+ }
+
+end:
+ return ret;
+}
+
int setup_live_tracing()
{
struct lttng_domain dom;
goto error_session;
}
- /*
- memset(&ev, '\0', sizeof(struct lttng_event));
- ev.type = LTTNG_EVENT_PROBE;
- sprintf(ev.attr.probe.symbol_name, "sys_open");
- sprintf(ev.name, "probe_sys_open");
- ev.attr.probe.addr = 0;
- ev.attr.probe.offset = 0;
- if ((ret = lttng_enable_event(handle, &ev, channel_name)) < 0) {
- fprintf(stderr,"error enabling kprobes : %s\n",
- helper_lttcomm_get_readable_code(ret));
+ ret = enable_kprobes(handle, channel_name);
+ if (ret < 0) {
goto error_session;
}
- */
kctxpid.ctx = LTTNG_EVENT_CONTEXT_PID;
lttng_add_context(handle, &kctxpid, NULL, NULL);
signal(SIGTERM, handle_textdump_sigterm);
signal(SIGINT, handle_textdump_sigterm);
}
+ init_lttngtop();
ret = setup_live_tracing();
if (ret < 0) {
goto end;
}
- init_lttngtop();
if (!opt_textdump) {
pthread_create(&display_thread, NULL, ncurses_display, (void *) NULL);
pthread_create(&timer_thread, NULL, refresh_thread, (void *) NULL);