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-rw-r--r--scripts/tracetool/backend/stderr.py56
1 files changed, 56 insertions, 0 deletions
diff --git a/scripts/tracetool/backend/stderr.py b/scripts/tracetool/backend/stderr.py
new file mode 100644
index 0000000000..917fde7c15
--- /dev/null
+++ b/scripts/tracetool/backend/stderr.py
@@ -0,0 +1,56 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Stderr built-in backend.
+"""
+
+__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 c(events):
+ out('#include "trace.h"',
+ '',
+ 'TraceEvent trace_list[] = {')
+
+ for e in events:
+ out('{.tp_name = "%(name)s", .state=0},',
+ name = e.name,
+ )
+
+ out('};')
+
+def h(events):
+ out('#include <stdio.h>',
+ '#include "trace/stderr.h"',
+ '',
+ 'extern TraceEvent trace_list[];')
+
+ for num, e in enumerate(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) {',
+ ' fprintf(stderr, "%(name)s " %(fmt)s "\\n" %(argnames)s);',
+ ' }',
+ '}',
+ name = e.name,
+ args = e.args,
+ event_num = num,
+ fmt = e.fmt,
+ argnames = argnames,
+ )
+
+ out('',
+ '#define NR_TRACE_EVENTS %d' % len(events))