9530570fa5
* A new format is required to generate definitions for ust tracepoints. Files ust_events_h.py and ust_events_c.py define common macros, while new function ust_events_h in events.py does the actual definition of each tracepoint. * ust.py generates the new interface for calling userspace tracepoints with LTTng 2.x, replacing trace_name(args) to tracepoint(name, args). * As explained in ust_events_c.py, -Wredundant-decls gives a warning when compiling with gcc 4.7 or older. This is specific to lttng-ust so for now use a pragma clause to avoid getting a warning. Signed-off-by: Mohamad Gebai <mohamad.gebai@polymtl.ca> Reviewed-by: Alex Bennée <alex@bennee.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
58 lines
1.8 KiB
Python
58 lines
1.8 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Generate .h for LTTng ust event description.
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"""
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__author__ = "Mohamad Gebai <mohamad.gebai@polymtl.ca>"
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__copyright__ = "Copyright 2012, Mohamad Gebai <mohamad.gebai@polymtl.ca>"
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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@redhat.com"
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from tracetool import out
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def begin(events):
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out('/* This file is autogenerated by tracetool, do not edit. */',
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'',
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'#undef TRACEPOINT_PROVIDER',
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'#define TRACEPOINT_PROVIDER qemu',
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'',
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'#undef TRACEPOINT_INCLUDE_FILE',
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'#define TRACEPOINT_INCLUDE_FILE ./generated-ust-provider.h',
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'',
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'#if !defined (TRACE__GENERATED_UST_H) || defined(TRACEPOINT_HEADER_MULTI_READ)',
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'#define TRACE__GENERATED_UST_H',
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'',
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'#include "qemu-common.h"',
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'#include <lttng/tracepoint.h>',
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'',
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'/*',
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' * LTTng ust 2.0 does not allow you to use TP_ARGS(void) for tracepoints',
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' * requiring no arguments. We define these macros introduced in more recent'
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' * versions of LTTng ust as a workaround',
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' */',
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'#ifndef _TP_EXPROTO1',
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'#define _TP_EXPROTO1(a) void',
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'#endif',
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'#ifndef _TP_EXDATA_PROTO1',
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'#define _TP_EXDATA_PROTO1(a) void *__tp_data',
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'#endif',
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'#ifndef _TP_EXDATA_VAR1',
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'#define _TP_EXDATA_VAR1(a) __tp_data',
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'#endif',
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'#ifndef _TP_EXVAR1',
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'#define _TP_EXVAR1(a)',
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'#endif',
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'')
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def end(events):
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out('#endif /* TRACE__GENERATED_UST_H */',
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'',
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'/* This part must be outside ifdef protection */',
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'#include <lttng/tracepoint-event.h>')
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