X-Git-Url: https://git.lttng.org/?p=lttngtop.git;a=blobdiff_plain;f=src%2Flttngtop.c;h=e9f240bed29cf67d9e63ba3f265db1e5f17b8d6f;hp=2521d5f260a33d1d32a8d2cf461756889da60f5d;hb=1d74c4d1c6aaa6bcad2f2d4b02e720c0a318584d;hpb=b0135e606d044172835922d3963db5aa7759a754

diff --git a/src/lttngtop.c b/src/lttngtop.c
index 2521d5f..e9f240b 100644
--- a/src/lttngtop.c
+++ b/src/lttngtop.c
@@ -83,6 +83,8 @@ GPtrArray *available_snapshots;
 sem_t metadata_available;
 int reload_trace = 0;
 
+uint64_t prev_ts = 0;
+
 enum {
 	OPT_NONE = 0,
 	OPT_HELP,
@@ -212,11 +214,14 @@ void print_fields(struct bt_ctf_event *event)
 enum bt_cb_ret print_timestamp(struct bt_ctf_event *call_data, void *private_data)
 {
 	unsigned long timestamp;
+	uint64_t delta;
 	struct tm start;
 	uint64_t ts_nsec_start;
 	int pid, cpu_id, tid;
 	const struct bt_definition *scope;
 	const char *hostname, *procname;
+	struct cputime *cpu;
+	char *from_syscall = NULL;
 
 	timestamp = bt_ctf_get_timestamp(call_data);
 
@@ -262,20 +267,46 @@ enum bt_cb_ret print_timestamp(struct bt_ctf_event *call_data, void *private_dat
 
 	cpu_id = get_cpu_id(call_data);
 	procname = get_context_comm(call_data);
-
-	if (hostname) {
-		printf("%02d:%02d:%02d.%09" PRIu64 " (%s) (cpu %d) [%s (%d/%d)] %s (",
-				start.tm_hour, start.tm_min, start.tm_sec,
-				ts_nsec_start, hostname, cpu_id, procname, pid,
-				tid, bt_ctf_event_name(call_data));
-	} else {
-		printf("%02d:%02d:%02d.%09" PRIu64 " (cpu %d) [%s (%d/%d)] %s (",
-				start.tm_hour, start.tm_min, start.tm_sec,
-				ts_nsec_start, cpu_id, procname, pid, tid,
-				bt_ctf_event_name(call_data));
+	if (strncmp(bt_ctf_event_name(call_data), "sys_", 4) == 0) {
+		cpu = get_cpu(cpu_id);
+		cpu->current_syscall = g_new0(struct syscall, 1);
+		cpu->current_syscall->name = strdup(bt_ctf_event_name(call_data));
+		cpu->current_syscall->ts_start = timestamp;
+	} else if ((strncmp(bt_ctf_event_name(call_data), "exit_syscall", 12)) == 0) {
+		struct tm start_ts;
+
+		cpu = get_cpu(cpu_id);
+		if (cpu->current_syscall) {
+			delta = timestamp - cpu->current_syscall->ts_start;
+			start_ts = format_timestamp(cpu->current_syscall->ts_start);
+			asprintf(&from_syscall, " [from %02d:%02d:%02d.%09" PRIu64
+					" (+%" PRIu64 ".%09" PRIu64 ") (cpu %d) %s]\n",
+					start_ts.tm_hour, start_ts.tm_min, start_ts.tm_sec,
+					cpu->current_syscall->ts_start % NSEC_PER_SEC,
+					delta / NSEC_PER_SEC, delta % NSEC_PER_SEC,
+					cpu_id, cpu->current_syscall->name);
+			free(cpu->current_syscall->name);
+			g_free(cpu->current_syscall);
+			cpu->current_syscall = NULL;
+		}
 	}
+
+	if (prev_ts == 0)
+		prev_ts = timestamp;
+	delta = timestamp - prev_ts;
+	prev_ts = timestamp;
+
+	printf("%02d:%02d:%02d.%09" PRIu64 " (+%" PRIu64 ".%09" PRIu64 ") %s%s"
+			"(cpu %d) [%s (%d/%d)] %s (",
+			start.tm_hour, start.tm_min, start.tm_sec,
+			ts_nsec_start, delta / NSEC_PER_SEC,
+			delta % NSEC_PER_SEC, (hostname) ? hostname : "",
+			(hostname) ? " ": "", cpu_id, procname, pid, tid,
+			bt_ctf_event_name(call_data));
 	print_fields(call_data);
-	printf(")\n");
+	printf(")%s", (from_syscall) ? from_syscall : "\n");
+
+	free(from_syscall);
 
 end:
 	return BT_CB_OK;