Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

# gpg: Signature made Wed 12 Oct 2016 09:43:03 BST
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  trace: Add missing execution mode of guest events
  trace: introduce a formal group name for trace events
  trace: pass trace-events to tracetool as a positional param
  trace: push reading of events up a level to tracetool main
  trace: rename _read_events to read_events
  trace: get rid of generated-events.h/generated-events.c
  trace: dynamically allocate event IDs at runtime
  trace: dynamically allocate trace_dstate in CPUState
  trace: provide mechanism for registering trace events
  trace: don't abort qemu if ftrace can't be initialized
  trace: emit name <-> ID mapping in simpletrace header
  trace: remove the TraceEventID and TraceEventVCPUID enums
  trace: give each trace event a named TraceEvent struct
  trace: break circular dependency in event-internal.h
  trace: remove duplicate control.h includes in generated-tracers.h
  trace: remove global 'uint16 dstate[]' array
  trace: remove some now unused functions
  trace: convert code to use event iterators
  trace: add trace event iterator APIs
  trace: move colo trace events to net/ sub-directory

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 14 insertions, 12 deletions

diff --git a/monitor.c b/monitor.c
index b07f254698..8728dd9fa5 100644
--- a/monitor.c
+++ b/monitor.c
@@ -3330,13 +3330,14 @@ void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *st
     len = strlen(str);
     readline_set_completion_index(rs, len);
     if (nb_args == 2) {
-        TraceEventID id;
-        for (id = 0; id < trace_event_count(); id++) {
-            const char *event_name = trace_event_get_name(trace_event_id(id));
-            if (!strncmp(str, event_name, len)) {
-                readline_add_completion(rs, event_name);
-            }
+        TraceEventIter iter;
+        TraceEvent *ev;
+        char *pattern = g_strdup_printf("%s*", str);
+        trace_event_iter_init(&iter, pattern);
+        while ((ev = trace_event_iter_next(&iter)) != NULL) {
+            readline_add_completion(rs, trace_event_get_name(ev));
         }
+        g_free(pattern);
     }
 }
 
@@ -3347,13 +3348,14 @@ void trace_event_completion(ReadLineState *rs, int nb_args, const char *str)
     len = strlen(str);
     readline_set_completion_index(rs, len);
     if (nb_args == 2) {
-        TraceEventID id;
-        for (id = 0; id < trace_event_count(); id++) {
-            const char *event_name = trace_event_get_name(trace_event_id(id));
-            if (!strncmp(str, event_name, len)) {
-                readline_add_completion(rs, event_name);
-            }
+        TraceEventIter iter;
+        TraceEvent *ev;
+        char *pattern = g_strdup_printf("%s*", str);
+        trace_event_iter_init(&iter, pattern);
+        while ((ev = trace_event_iter_next(&iter)) != NULL) {
+            readline_add_completion(rs, trace_event_get_name(ev));
         }
+        g_free(pattern);
     } else if (nb_args == 3) {
         add_completion_option(rs, str, "on");
         add_completion_option(rs, str, "off");