80dd5c4918
The declarations in the generated-tracers.h file are assuming there's only ever going to be one instance of this header, as they are not namespaced. When we have one header per event group, if a single source file needs to include multiple sets of trace events, the symbols will all clash. This change thus introduces a '--group NAME' arg to the 'tracetool' program. This will cause all the symbols in the generated header files to be given a unique namespace. If no group is given, the group name 'common' is used, which is suitable for the current usage where there is only one global trace-events file used for code generation. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu> Message-id: 1475588159-30598-21-git-send-email-berrange@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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trace/generated-tracers.c
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"""
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__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
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__copyright__ = "Copyright 2012-2014, Lluís Vilanova <vilanova@ac.upc.edu>"
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__license__ = "GPL version 2 or (at your option) any later version"
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__maintainer__ = "Stefan Hajnoczi"
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__email__ = "stefanha@linux.vnet.ibm.com"
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from tracetool import out
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def generate(events, backend, group):
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active_events = [e for e in events
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if "disable" not in e.properties]
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out('/* This file is autogenerated by tracetool, do not edit. */',
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'',
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'#include "qemu/osdep.h"',
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'#include "trace.h"',
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'')
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for e in events:
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out('uint16_t %s;' % e.api(e.QEMU_DSTATE))
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for e in events:
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if "vcpu" in e.properties:
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vcpu_id = 0
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else:
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vcpu_id = "TRACE_VCPU_EVENT_NONE"
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out('TraceEvent %(event)s = {',
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' .id = 0,',
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' .vcpu_id = %(vcpu_id)s,',
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' .name = \"%(name)s\",',
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' .sstate = %(sstate)s,',
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' .dstate = &%(dstate)s ',
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'};',
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event = e.api(e.QEMU_EVENT),
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vcpu_id = vcpu_id,
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name = e.name,
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sstate = "TRACE_%s_ENABLED" % e.name.upper(),
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dstate = e.api(e.QEMU_DSTATE))
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out('TraceEvent *%(group)s_trace_events[] = {',
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group = group.lower())
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for e in events:
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out(' &%(event)s,', event = e.api(e.QEMU_EVENT))
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out(' NULL,',
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'};',
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'')
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out('static void trace_%(group)s_register_events(void)',
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'{',
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' trace_event_register_group(%(group)s_trace_events);',
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'}',
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'trace_init(trace_%(group)s_register_events)',
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group = group.lower())
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backend.generate_begin(active_events, group)
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for event in active_events:
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backend.generate(event, group)
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backend.generate_end(active_events, group)
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