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authorLluís Vilanova <vilanova@ac.upc.edu>2014-05-30 14:12:01 +0200
committerStefan Hajnoczi <stefanha@redhat.com>2014-08-12 14:26:12 +0100
commitf4654226d42cff5351b5f0df5913c5cf04775cdc (patch)
tree2f0cdf2aab1038150c1cb0465325b14d4b37bc30 /scripts
parent341ea69185239eeb7da73434ac2803790a429e9c (diff)
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trace: [tcg] Define TCG tracing helper routine wrappers
Generates header "trace/generated-helpers-wrappers.h" with definitions for TCG helper wrappers. These wrappers ('gen_helper_trace_${event}_exec_wrapper') transform mixed native and TCG argument types to TCG types and call the actual TCG helpers ('gen_helper_trace_${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/format/tcg_helper_wrapper_h.py70
1 files changed, 70 insertions, 0 deletions
diff --git a/scripts/tracetool/format/tcg_helper_wrapper_h.py b/scripts/tracetool/format/tcg_helper_wrapper_h.py
new file mode 100644
index 0000000..cac5a87
--- /dev/null
+++ b/scripts/tracetool/format/tcg_helper_wrapper_h.py
@@ -0,0 +1,70 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+"""
+Generate trace/generated-helpers-wrappers.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. */',
+ '',
+ '#define tcg_temp_new_nop(v) (v)',
+ '#define tcg_temp_free_nop(v)',
+ '',
+ )
+
+ for e in events:
+ if "tcg-exec" not in e.properties:
+ continue
+
+ # tracetool.generate always transforms types to host
+ e_args = e.original.args
+
+ # mixed-type to TCG helper bridge
+ args_tcg_compat = e_args.transform(HOST_2_TCG_COMPAT)
+
+ code_new = [
+ "%(tcg_type)s __%(name)s = %(tcg_func)s(%(name)s);" %
+ {"tcg_type": transform_type(type_, HOST_2_TCG),
+ "tcg_func": transform_type(type_, HOST_2_TCG_TMP_NEW),
+ "name": name}
+ for (type_, name) in args_tcg_compat
+ ]
+
+ code_free = [
+ "%(tcg_func)s(__%(name)s);" %
+ {"tcg_func": transform_type(type_, HOST_2_TCG_TMP_FREE),
+ "name": name}
+ for (type_, name) in args_tcg_compat
+ ]
+
+ gen_name = "gen_helper_" + e.api()
+
+ out('static inline void %(name)s(%(args)s)',
+ '{',
+ ' %(code_new)s',
+ ' %(proxy_name)s(%(tmp_names)s);',
+ ' %(code_free)s',
+ '}',
+ name=gen_name,
+ args=e_args,
+ proxy_name=gen_name + "_proxy",
+ code_new="\n ".join(code_new),
+ code_free="\n ".join(code_free),
+ tmp_names=", ".join(["__%s" % name for _, name in e_args]),
+ )