341ea69185
Generates file "trace/generated-helpers.c" with TCG helper definitions to trace
events in guest code at execution time.
The helpers ('helper_trace_${event}_exec_proxy') cast the TCG-compatible native
argument types to their original types (as defined in "trace-events") and call
the tracing routine ('trace_${event}_exec').
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
51 lines
1.3 KiB
Python
51 lines
1.3 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Generate trace/generated-helpers.c.
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"""
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__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
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__copyright__ = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
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__license__ = "GPL version 2 or (at your option) any later version"
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__maintainer__ = "Stefan Hajnoczi"
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__email__ = "stefanha@linux.vnet.ibm.com"
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from tracetool import out
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from tracetool.transform import *
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def generate(events, backend):
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events = [e for e in events
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if "disable" not in e.properties]
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out('/* This file is autogenerated by tracetool, do not edit. */',
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'',
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'#include "qemu-common.h"',
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'#include "trace.h"',
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'#include "exec/helper-proto.h"',
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'',
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)
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for e in events:
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if "tcg-exec" not in e.properties:
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continue
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# tracetool.generate always transforms types to host
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e_args = e.original.args
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values = ["(%s)%s" % (t, n)
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for t, n in e.args.transform(TCG_2_TCG_HELPER_DEF)]
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out('void %(name_tcg)s(%(args)s)',
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'{',
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' %(name)s(%(values)s);',
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'}',
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name_tcg="helper_%s_proxy" % e.api(),
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name=e.api(),
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args=e_args.transform(HOST_2_TCG_COMPAT, TCG_2_TCG_HELPER_DEF),
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values=", ".join(values),
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)
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