scripts/tracetool/format/c.py

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 """
   5 trace/generated-tracers.c
   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     active_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         '#include "qemu/osdep.h"',
  26         '#include "trace.h"',
  27         '')
  28
  29     for e in events:
  30         out('uint16_t %s;' % e.api(e.QEMU_DSTATE))
  31
  32     for e in events:
  33         if "vcpu" in e.properties:
  34             vcpu_id = 0
  35         else:
  36             vcpu_id = "TRACE_VCPU_EVENT_NONE"
  37         out('TraceEvent %(event)s = {',
  38             '    .id = 0,',
  39             '    .vcpu_id = %(vcpu_id)s,',
  40             '    .name = \"%(name)s\",',
  41             '    .sstate = %(sstate)s,',
  42             '    .dstate = &%(dstate)s ',
  43             '};',
  44             event = e.api(e.QEMU_EVENT),
  45             vcpu_id = vcpu_id,
  46             name = e.name,
  47             sstate = "TRACE_%s_ENABLED" % e.name.upper(),
  48             dstate = e.api(e.QEMU_DSTATE))
  49
  50     out('TraceEvent *trace_events[] = {')
  51
  52     for e in events:
  53         out('    &%(event)s,', event = e.api(e.QEMU_EVENT))
  54
  55     out('  NULL,',
  56         '};',
  57         '')
  58
  59     out('static void trace_register_events(void)',
  60         '{',
  61         '    trace_event_register_group(trace_events);',
  62         '}',
  63         'trace_init(trace_register_events)')
  64
  65     backend.generate_begin(active_events)
  66     for event in active_events:
  67         backend.generate(event)
  68     backend.generate_end(active_events)