Merge remote-tracking branch 'stefanha/tracing' into staging

# By Lluís Vilanova (7) and others
# Via Stefan Hajnoczi
* stefanha/tracing:
  vl: add runstate_set tracepoint
  .gitignore: rename trace/generated-tracers.dtrace
  .gitignore: add trace/generated-events.[ch]
  trace: rebuild generated-events.o when configuration changes
  trace: [stderr] Port to generic event information and new control interface
  trace: [simple] Port to generic event information and new control interface
  trace: [default] Port to generic event information and new control interface
  trace: [monitor] Use new event control interface
  trace: Provide a detailed event control interface
  trace: Provide a generic tracing event descriptor
  trace: [tracetool] Explicitly identify public backends

1 files changed, 39 insertions, 0 deletions

diff --git a/scripts/tracetool/format/events_c.py b/scripts/tracetool/format/events_c.py
new file mode 100644
index 0000000000..d670ec83d5
--- /dev/null
+++ b/scripts/tracetool/format/events_c.py
@@ -0,0 +1,39 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Generate .c for event description.
+"""
+
+__author__     = "Lluís Vilanova <vilanova@ac.upc.edu>"
+__copyright__  = "Copyright 2012, Lluís Vilanova <vilanova@ac.upc.edu>"
+__license__    = "GPL version 2 or (at your option) any later version"
+
+__maintainer__ = "Stefan Hajnoczi"
+__email__      = "stefanha@linux.vnet.ibm.com"
+
+
+from tracetool import out
+
+
+def begin(events):
+    out('/* This file is autogenerated by tracetool, do not edit. */',
+        '',
+        '#include "trace.h"',
+        '#include "trace/generated-events.h"',
+        '#include "trace/control.h"',
+        '',
+        )
+
+    out('TraceEvent trace_events[TRACE_EVENT_COUNT] = {')
+
+    for e in events:
+        out('    { .id = %(id)s, .name = \"%(name)s\", .sstate = %(sstate)s, .dstate = 0 },',
+            id = "TRACE_" + e.name.upper(),
+            name = e.name,
+            sstate = "TRACE_%s_ENABLED" % e.name.upper(),
+            )
+
+    out('};',
+        '',
+        )