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>
50 lines
1.3 KiB
Python
50 lines
1.3 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Stderr built-in backend.
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"""
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__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>"
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__copyright__ = "Copyright 2012-2016, 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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PUBLIC = True
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def generate_h_begin(events, group):
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out('#include "qemu/log.h"',
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'')
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def generate_h(event, group):
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argnames = ", ".join(event.args.names())
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if len(event.args) > 0:
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argnames = ", " + argnames
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if "vcpu" in event.properties:
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# already checked on the generic format code
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cond = "true"
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else:
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cond = "trace_event_get_state(%s)" % ("TRACE_" + event.name.upper())
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out(' if (%(cond)s) {',
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' struct timeval _now;',
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' gettimeofday(&_now, NULL);',
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' qemu_log_mask(LOG_TRACE, "%%d@%%zd.%%06zd:%(name)s " %(fmt)s "\\n",',
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' getpid(),',
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' (size_t)_now.tv_sec, (size_t)_now.tv_usec',
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' %(argnames)s);',
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' }',
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cond=cond,
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name=event.name,
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fmt=event.fmt.rstrip("\n"),
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argnames=argnames)
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