scripts/tracetool/format/ust_events_h.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 """
   5 Generate .h for LTTng ust event description.
   6 """
   7
   8 __author__     = "Mohamad Gebai <mohamad.gebai@polymtl.ca>"
   9 __copyright__  = "Copyright 2012, Mohamad Gebai <mohamad.gebai@polymtl.ca>"
  10 __license__    = "GPL version 2 or (at your option) any later version"
  11
  12 __maintainer__ = "Stefan Hajnoczi"
  13 __email__      = "stefanha@redhat.com"
  14
  15
  16 from tracetool import out
  17
  18
  19 def begin(events):
  20     out('/* This file is autogenerated by tracetool, do not edit. */',
  21         '',
  22         '#undef TRACEPOINT_PROVIDER',
  23         '#define TRACEPOINT_PROVIDER qemu',
  24         '',
  25         '#undef TRACEPOINT_INCLUDE_FILE',
  26         '#define TRACEPOINT_INCLUDE_FILE ./generated-ust-provider.h',
  27         '',
  28         '#if !defined (TRACE__GENERATED_UST_H) || defined(TRACEPOINT_HEADER_MULTI_READ)',
  29         '#define TRACE__GENERATED_UST_H',
  30         '',
  31         '#include "qemu-common.h"',
  32         '#include <lttng/tracepoint.h>',
  33         '',
  34         '/*',
  35         ' * LTTng ust 2.0 does not allow you to use TP_ARGS(void) for tracepoints',
  36         ' * requiring no arguments. We define these macros introduced in more recent'
  37         ' * versions of LTTng ust as a workaround',
  38         ' */',
  39         '#ifndef _TP_EXPROTO1',
  40         '#define _TP_EXPROTO1(a)               void',
  41         '#endif',
  42         '#ifndef _TP_EXDATA_PROTO1',
  43         '#define _TP_EXDATA_PROTO1(a)          void *__tp_data',
  44         '#endif',
  45         '#ifndef _TP_EXDATA_VAR1',
  46         '#define _TP_EXDATA_VAR1(a)            __tp_data',
  47         '#endif',
  48         '#ifndef _TP_EXVAR1',
  49         '#define _TP_EXVAR1(a)',
  50         '#endif',
  51         '')
  52
  53 def end(events):
  54     out('#endif /* TRACE__GENERATED_UST_H */',
  55         '',
  56         '/* This part must be outside ifdef protection */',
  57         '#include <lttng/tracepoint-event.h>')