jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
1#!/usr/bin/env python
2# -*- coding: utf-8 -*-
3
4"""
5Syslog built-in backend.
6"""
7
8__author__ = "Paul Durrant <paul.durrant@citrix.com>"
9__copyright__ = "Copyright 2016, Citrix Systems Inc."
10__license__ = "GPL version 2 or (at your option) any later version"
11
12__maintainer__ = "Stefan Hajnoczi"
13__email__ = "stefanha@redhat.com"
14
15
16from tracetool import out
17
18
19PUBLIC = True
20
21
22def generate_h_begin(events, group):
23 out('#include <syslog.h>',
24 '')
25
26
27def generate_h(event, group):
28 argnames = ", ".join(event.args.names())
29 if len(event.args) > 0:
30 argnames = ", " + argnames
31
32 if "vcpu" in event.properties:
33 # already checked on the generic format code
34 cond = "true"
35 else:
36 cond = "trace_event_get_state(%s)" % ("TRACE_" + event.name.upper())
37
38 out(' if (%(cond)s) {',
39 ' syslog(LOG_INFO, "%(name)s " %(fmt)s %(argnames)s);',
40 ' }',
41 cond=cond,
42 name=event.name,
43 fmt=event.fmt.rstrip("\n"),
44 argnames=argnames)
45
46
47def generate_h_backend_dstate(event, group):
48 out(' trace_event_get_state_dynamic_by_id(%(event_id)s) || \\',
49 event_id="TRACE_" + event.name.upper())