trace: [stderr] Port to generic event information and new control interface

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 8 insertions, 19 deletions

diff --git a/scripts/tracetool/backend/stderr.py b/scripts/tracetool/backend/stderr.py
index a10fbb83f4..6f93dbd1ae 100644
--- a/scripts/tracetool/backend/stderr.py
+++ b/scripts/tracetool/backend/stderr.py
@@ -20,40 +20,29 @@ PUBLIC = True
 
 
 def c(events):
-    out('#include "trace.h"',
-        '',
-        'TraceEvent trace_list[] = {')
-
-    for e in events:
-        out('{.tp_name = "%(name)s", .state=0},',
-            name = e.name,
-            )
-
-    out('};')
+    pass
 
 def h(events):
     out('#include <stdio.h>',
-        '#include "trace/stderr.h"',
+        '#include "trace/control.h"',
         '',
-        'extern TraceEvent trace_list[];')
+        )
 
-    for num, e in enumerate(events):
+    for e in events:
         argnames = ", ".join(e.args.names())
         if len(e.args) > 0:
             argnames = ", " + argnames
 
         out('static inline void trace_%(name)s(%(args)s)',
             '{',
-            '    if (trace_list[%(event_num)s].state != 0) {',
+            '    bool _state = trace_event_get_state(%(event_id)s);',
+            '    if (_state) {',
             '        fprintf(stderr, "%(name)s " %(fmt)s "\\n" %(argnames)s);',
             '    }',
             '}',
             name = e.name,
             args = e.args,
-            event_num = num,
-            fmt = e.fmt,
+            event_id = "TRACE_" + e.name.upper(),
+            fmt = e.fmt.rstrip("\n"),
             argnames = argnames,
             )
-
-    out('',
-        '#define NR_TRACE_EVENTS %d' % len(events))