scripts/tracetool/format/d.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 """
   5 trace/generated-tracers.dtrace (DTrace only).
   6 """
   7
   8 __author__     = "Lluís Vilanova <vilanova@ac.upc.edu>"
   9 __copyright__  = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
  10 __license__    = "GPL version 2 or (at your option) any later version"
  11
  12 __maintainer__ = "Stefan Hajnoczi"
  13 __email__      = "stefanha@linux.vnet.ibm.com"
  14
  15
  16 from tracetool import out
  17
  18
  19 def generate(events, backend):
  20     events = [e for e in events
  21               if "disable" not in e.properties]
  22
  23     out('/* This file is autogenerated by tracetool, do not edit. */'
  24         '',
  25         'provider qemu {')
  26
  27     for e in events:
  28         args = str(e.args)
  29
  30         # DTrace provider syntax expects foo() for empty
  31         # params, not foo(void)
  32         if args == 'void':
  33             args = ''
  34
  35         # Define prototype for probe arguments
  36         out('',
  37             'probe %(name)s(%(args)s);',
  38             name=e.name,
  39             args=args)
  40
  41     out('',
  42         '};')