7dbee12742
Signed-off-by: Tanish Desai <tanishdesai37@gmail.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-ID: <20250929154938.594389-16-pbonzini@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
# SPDX-License-Identifier: GPL-2.0-or-later
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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, expand_format_string
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PUBLIC = True
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CHECK_TRACE_EVENT_GET_STATE = True
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def generate_h_begin(events, group):
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out('#include "trace/ftrace.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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out('#line %(event_lineno)d "%(event_filename)s"',
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' ftrace_write("%(name)s " %(fmt)s "\\n" %(argnames)s);',
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'#line %(out_next_lineno)d "%(out_filename)s"',
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name=event.name,
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args=event.args,
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event_lineno=event.lineno,
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event_filename=event.filename,
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fmt=event.fmt.rstrip("\n"),
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argnames=argnames)
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def generate_h_backend_dstate(event, group):
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out(' trace_event_get_state_dynamic_by_id(%(event_id)s) || \\',
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event_id="TRACE_" + event.name.upper())
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def generate_rs(event, group):
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out(' let format_string = c"%(fmt)s";',
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' unsafe {bindings::ftrace_write(format_string.as_ptr() as *const c_char, %(args)s);}',
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fmt=expand_format_string(event.fmt),
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args=event.args.rust_call_varargs())
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