* 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
|
|
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
Generate .h for LTTng ust event description.
|
|
"""
|
|
|
|
__author__ = "Mohamad Gebai <mohamad.gebai@polymtl.ca>"
|
|
__copyright__ = "Copyright 2012, Mohamad Gebai <mohamad.gebai@polymtl.ca>"
|
|
__license__ = "GPL version 2 or (at your option) any later version"
|
|
|
|
__maintainer__ = "Stefan Hajnoczi"
|
|
__email__ = "stefanha@redhat.com"
|
|
|
|
|
|
from tracetool import out
|
|
|
|
|
|
def begin(events):
|
|
out('/* This file is autogenerated by tracetool, do not edit. */',
|
|
'',
|
|
'#undef TRACEPOINT_PROVIDER',
|
|
'#define TRACEPOINT_PROVIDER qemu',
|
|
'',
|
|
'#undef TRACEPOINT_INCLUDE_FILE',
|
|
'#define TRACEPOINT_INCLUDE_FILE ./generated-ust-provider.h',
|
|
'',
|
|
'#if !defined (TRACE__GENERATED_UST_H) || defined(TRACEPOINT_HEADER_MULTI_READ)',
|
|
'#define TRACE__GENERATED_UST_H',
|
|
'',
|
|
'#include "qemu-common.h"',
|
|
'#include <lttng/tracepoint.h>',
|
|
'',
|
|
'/*',
|
|
' * LTTng ust 2.0 does not allow you to use TP_ARGS(void) for tracepoints',
|
|
' * requiring no arguments. We define these macros introduced in more recent'
|
|
' * versions of LTTng ust as a workaround',
|
|
' */',
|
|
'#ifndef _TP_EXPROTO1',
|
|
'#define _TP_EXPROTO1(a) void',
|
|
'#endif',
|
|
'#ifndef _TP_EXDATA_PROTO1',
|
|
'#define _TP_EXDATA_PROTO1(a) void *__tp_data',
|
|
'#endif',
|
|
'#ifndef _TP_EXDATA_VAR1',
|
|
'#define _TP_EXDATA_VAR1(a) __tp_data',
|
|
'#endif',
|
|
'#ifndef _TP_EXVAR1',
|
|
'#define _TP_EXVAR1(a)',
|
|
'#endif',
|
|
'')
|
|
|
|
def end(events):
|
|
out('#endif /* TRACE__GENERATED_UST_H */',
|
|
'',
|
|
'/* This part must be outside ifdef protection */',
|
|
'#include <lttng/tracepoint-event.h>')
|