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authorLluís Vilanova <vilanova@ac.upc.edu>2014-05-30 14:12:13 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2014-08-12 14:26:12 +0100
commit465830fbd9be22995b34d7b3f8cd35572e1f8a36 (patch)
tree7e391213bdc5e2b018c7fdff5b0a87d23bada6a8 /scripts/tracetool
parent76b53aa32457e63957540d99149901989c075d3c (diff)
trace: [tcg] Generate TCG tracing routines
Generate header "trace/generated-tcg-tracers.h" with the necessary routines for tracing events in guest code: * trace_${event}_tcg Convenience wrapper that calls the translation-time tracer 'trace_${event}_trans', and calls 'gen_helper_trace_${event}_exec to generate the TCG code to later trace the event at execution time. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'scripts/tracetool')
-rw-r--r--scripts/tracetool/format/tcg_h.py57
1 files changed, 57 insertions, 0 deletions
diff --git a/scripts/tracetool/format/tcg_h.py b/scripts/tracetool/format/tcg_h.py
new file mode 100644
index 0000000000..f676b66622
--- /dev/null
+++ b/scripts/tracetool/format/tcg_h.py
@@ -0,0 +1,57 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Generate .h file for TCG code generation.
+"""
+
+__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
+__copyright__ = "Copyright 2012-2014, 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 generate(events, backend):
+ out('/* This file is autogenerated by tracetool, do not edit. */',
+ '/* You must include this file after the inclusion of helper.h */',
+ '',
+ '#ifndef TRACE__GENERATED_TCG_TRACERS_H',
+ '#define TRACE__GENERATED_TCG_TRACERS_H',
+ '',
+ '#include <stdint.h>',
+ '',
+ '#include "trace.h"',
+ '#include "exec/helper-proto.h"',
+ '',
+ )
+
+ for e in events:
+ # just keep one of them
+ if "tcg-trans" not in e.properties:
+ continue
+
+ # get the original event definition
+ e = e.original.original
+
+ out('static inline void %(name_tcg)s(%(args)s)',
+ '{',
+ name_tcg=e.api(e.QEMU_TRACE_TCG),
+ args=e.args)
+
+ if "disable" not in e.properties:
+ out(' %(name_trans)s(%(argnames_trans)s);',
+ ' gen_helper_%(name_exec)s(%(argnames_exec)s);',
+ name_trans=e.event_trans.api(e.QEMU_TRACE),
+ name_exec=e.event_exec.api(e.QEMU_TRACE),
+ argnames_trans=", ".join(e.event_trans.args.names()),
+ argnames_exec=", ".join(e.event_exec.args.names()))
+
+ out('}')
+
+ out('',
+ '#endif /* TRACE__GENERATED_TCG_TRACERS_H */')