trace-cmd: extract command needs to record all events

When changing the code to limit the events recorded into the trace
file to the events chosen by the user, it broke the extract code.

The extract does not know what events are needed so it must record
all events.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

1 files changed, 20 insertions, 9 deletions

diff --git a/trace-record.c b/trace-record.c
index d73d37d..9343822 100644
--- a/trace-record.c
+++ b/trace-record.c
@@ -1794,6 +1794,21 @@ void set_buffer_size(void)
         close(fd);
 }
 
+static void record_all_events(void)
+{
+        struct tracecmd_event_list *list;
+
+        while (listed_events) {
+                list = listed_events;
+                listed_events = list->next;
+                free(list);
+        }
+        list = malloc_or_die(sizeof(*list));
+        list->next = NULL;
+        list->glob = "*/*";
+        listed_events = list;
+}
+
 void trace_record (int argc, char **argv)
 {
         const char *plugin = NULL;
@@ -1862,15 +1877,7 @@ void trace_record (int argc, char **argv)
                         break;
                 case 'a':
                         record_all = 1;
-                        while (listed_events) {
-                                list = listed_events;
-                                listed_events = list->next;
-                                free(list);
-                        }
-                        list = malloc_or_die(sizeof(*list));
-                        list->next = NULL;
-                        list->glob = "*/*";
-                        listed_events = list;
+                        record_all_events();
 
                         break;
                 case 'e':
@@ -2030,6 +2037,10 @@ void trace_record (int argc, char **argv)
 
         tracing_on_init_val = read_tracing_on();
 
+        /* Extracting data records all events in the system. */
+        if (extract)
+                record_all_events();
+
         if (event_selection)
                 expand_event_list();