99672c7167
The format/h.py file adds an include for control.h to generated-tracers.h. ftrace, log and syslog, then add more duplicate includes for control.h. Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 1475588159-30598-8-git-send-email-berrange@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
48 lines
1.3 KiB
Python
48 lines
1.3 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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"""
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Ftrace built-in backend.
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"""
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__author__ = "Eiichi Tsukata <eiichi.tsukata.xh@hitachi.com>"
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__copyright__ = "Copyright (C) 2013 Hitachi, Ltd."
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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@redhat.com"
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from tracetool import out
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PUBLIC = True
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def generate_h_begin(events):
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out('#include "trace/ftrace.h"',
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'')
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def generate_h(event):
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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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out(' {',
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' char ftrace_buf[MAX_TRACE_STRLEN];',
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' int unused __attribute__ ((unused));',
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' int trlen;',
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' if (trace_event_get_state(%(event_id)s)) {',
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' trlen = snprintf(ftrace_buf, MAX_TRACE_STRLEN,',
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' "%(name)s " %(fmt)s "\\n" %(argnames)s);',
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' trlen = MIN(trlen, MAX_TRACE_STRLEN - 1);',
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' unused = write(trace_marker_fd, ftrace_buf, trlen);',
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' }',
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' }',
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name=event.name,
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args=event.args,
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event_id="TRACE_" + event.name.upper(),
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fmt=event.fmt.rstrip("\n"),
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argnames=argnames)
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