tracetool/backend/simple.py

1 # -*- coding: utf-8 -*-
4 Simple built-in backend.
8 __copyright__  = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>"
31     for event in events:
33             api=event.api(),
34             args=event.args)
38 def generate_h(event, group):  argument
40         api=event.api(),
41         args=", ".join(event.args.names()))
44 def generate_h_backend_dstate(event, group):  argument
46         event_id="TRACE_" + event.name.upper())
56 def generate_c(event, group):  argument
60         api=event.api(),
61         args=event.args)
63     for type_, name in event.args:
65 …        out('    size_t arg%(name)s_len = %(name)s ? MIN(strlen(%(name)s), MAX_TRACE_STRLEN) : 0;',
66                 name=name)
67             strsizeinfo = "4 + arg%s_len" % name
72     if len(event.args) == 0:
75     event_id = 'TRACE_' + event.name.upper()
76     if "vcpu" in event.properties:
88         '        return; /* Trace Buffer Full, Event Dropped ! */',
91         event_obj=event.api(event.QEMU_EVENT),
94     if len(event.args) > 0:
95         for type_, name in event.args:
98                 out('    trace_record_write_str(&rec, %(name)s, arg%(name)s_len);',
99                     name=name)
102                 out('    trace_record_write_u64(&rec, (uintptr_t)(uint64_t *)%(name)s);',
103                     name=name)
106                 out('    trace_record_write_u64(&rec, (uint64_t)%(name)s);',
107                    name=name)