93fba1618d
Public backends are those printed by "--list-backends" and thus considered valid by the configure script. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
94 lines
2.4 KiB
Python
94 lines
2.4 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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LTTng User Space Tracing backend.
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"""
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__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
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__copyright__ = "Copyright 2012, 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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PUBLIC = True
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def c(events):
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out('#include <ust/marker.h>',
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'#undef mutex_lock',
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'#undef mutex_unlock',
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'#undef inline',
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'#undef wmb',
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'#include "trace.h"')
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for e in events:
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argnames = ", ".join(e.args.names())
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if len(e.args) > 0:
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argnames = ', ' + argnames
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out('DEFINE_TRACE(ust_%(name)s);',
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'',
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'static void ust_%(name)s_probe(%(args)s)',
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'{',
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' trace_mark(ust, %(name)s, %(fmt)s%(argnames)s);',
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'}',
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name = e.name,
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args = e.args,
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fmt = e.fmt,
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argnames = argnames,
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)
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else:
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out('DEFINE_TRACE(ust_%(name)s);',
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'',
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'static void ust_%(name)s_probe(%(args)s)',
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'{',
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' trace_mark(ust, %(name)s, UST_MARKER_NOARGS);',
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'}',
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name = e.name,
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args = e.args,
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)
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# register probes
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out('',
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'static void __attribute__((constructor)) trace_init(void)',
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'{')
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for e in events:
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out(' register_trace_ust_%(name)s(ust_%(name)s_probe);',
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name = e.name,
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)
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out('}')
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def h(events):
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out('#include <ust/tracepoint.h>',
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'#undef mutex_lock',
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'#undef mutex_unlock',
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'#undef inline',
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'#undef wmb')
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for e in events:
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if len(e.args) > 0:
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out('DECLARE_TRACE(ust_%(name)s, TP_PROTO(%(args)s), TP_ARGS(%(argnames)s));',
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'#define trace_%(name)s trace_ust_%(name)s',
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name = e.name,
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args = e.args,
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argnames = ", ".join(e.args.names()),
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)
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else:
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out('_DECLARE_TRACEPOINT_NOARGS(ust_%(name)s);',
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'#define trace_%(name)s trace_ust_%(name)s',
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name = e.name,
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)
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out()
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