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authorLluís Vilanova <vilanova@ac.upc.edu>2014-05-30 14:11:50 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2014-08-12 14:26:12 +0100
commit707c8a98e4c42a559ad8d1ec0e77e28ffd666346 (patch)
treeb26f404ae1c05bd4ae5e01e7ff7fbcfffafa7446 /scripts
parentb2b36c22bd8b14de34bd108daa96d89ba41fe8e7 (diff)
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trace: [tcg] Declare TCG tracing helper routines
Generates file "trace/generated-helpers.h" with TCG helper declarations to trace events in guest code at execution time ('trace_${event}_exec_proxy'). Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/tracetool/__init__.py1
-rw-r--r--scripts/tracetool/format/tcg_helper_h.py50
2 files changed, 51 insertions, 0 deletions
diff --git a/scripts/tracetool/__init__.py b/scripts/tracetool/__init__.py
index de48c80..a51e0f2 100644
--- a/scripts/tracetool/__init__.py
+++ b/scripts/tracetool/__init__.py
@@ -227,6 +227,7 @@ class Event(object):
fmt)
QEMU_TRACE = "trace_%(name)s"
+ QEMU_TRACE_TCG = QEMU_TRACE + "_tcg"
def api(self, fmt=None):
if fmt is None:
diff --git a/scripts/tracetool/format/tcg_helper_h.py b/scripts/tracetool/format/tcg_helper_h.py
new file mode 100644
index 0000000..a8ba7ba
--- /dev/null
+++ b/scripts/tracetool/format/tcg_helper_h.py
@@ -0,0 +1,50 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Generate trace/generated-helpers.h.
+"""
+
+__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
+from tracetool.transform import *
+
+
+def generate(events, backend):
+ events = [e for e in events
+ if "disable" not in e.properties]
+
+ out('/* This file is autogenerated by tracetool, do not edit. */',
+ '',
+ )
+
+ for e in events:
+ if "tcg-exec" not in e.properties:
+ continue
+
+ # tracetool.generate always transforms types to host
+ e_args = e.original.args
+
+ # TCG helper proxy declaration
+ fmt = "DEF_HELPER_FLAGS_%(argc)d(%(name)s, %(flags)svoid%(types)s)"
+ args = e_args.transform(HOST_2_TCG_COMPAT, HOST_2_TCG,
+ TCG_2_TCG_HELPER_DECL)
+ types = ", ".join(args.types())
+ if types != "":
+ types = ", " + types
+
+ flags = "TCG_CALL_NO_RWG, "
+
+ out(fmt,
+ flags=flags,
+ argc=len(args),
+ name=e.api() + "_proxy",
+ types=types,
+ )