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

Tracing pull request

# gpg: Signature made Mon 09 Jun 2014 14:44:18 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/tracing-pull-request:
  trace: Replace fprintf with error_report and print location
  trace: Multi-backend tracing
  trace: Replace error with warning if event is not defined
  simpletrace: add support for trace record pid field
  trace: add pid field to simpletrace record

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

1 files changed, 1 insertions, 24 deletions

diff --git a/trace/ftrace.c b/trace/ftrace.c
index 46b7fdb1f2..a7ae371e6f 100644
--- a/trace/ftrace.c
+++ b/trace/ftrace.c
@@ -42,35 +42,13 @@ static int find_debugfs(char *debugfs)
     return 1;
 }
 
-void trace_print_events(FILE *stream, fprintf_function stream_printf)
-{
-    TraceEventID i;
-
-    for (i = 0; i < trace_event_count(); i++) {
-        TraceEvent *ev = trace_event_id(i);
-        stream_printf(stream, "%s [Event ID %u] : state %u\n",
-                      trace_event_get_name(ev), i, trace_event_get_state_dynamic(ev));
-    }
-}
-
-void trace_event_set_state_dynamic_backend(TraceEvent *ev, bool state)
-{
-    ev->dstate = state;
-}
-
-bool trace_backend_init(const char *events, const char *file)
+bool ftrace_init(void)
 {
     char debugfs[PATH_MAX];
     char path[PATH_MAX];
     int debugfs_found;
     int trace_fd = -1;
 
-    if (file) {
-        fprintf(stderr, "error: -trace file=...: "
-                "option not supported by the selected tracing backend\n");
-        return false;
-    }
-
     debugfs_found = find_debugfs(debugfs);
     if (debugfs_found) {
         snprintf(path, PATH_MAX, "%s/tracing/tracing_on", debugfs);
@@ -97,6 +75,5 @@ bool trace_backend_init(const char *events, const char *file)
         return false;
     }
 
-    trace_backend_init_events(events);
     return true;
 }