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# SPDX-License-Identifier: GPL-2.0-or-later
"""
trace-DIR.rs
"""
__author__ = "Tanish Desai <tanishdesai37@gmail.com>"
__copyright__ = "Copyright 2025, Tanish Desai <tanishdesai37@gmail.com>"
__license__ = "GPL version 2 or (at your option) any later version"
__maintainer__ = "Stefan Hajnoczi"
__email__ = "stefanha@redhat.com"
from tracetool import out
def generate(events, backend, group):
out('// SPDX-License-Identifier: GPL-2.0-or-later',
'// This file is @generated by tracetool, do not edit.',
'',
'#[allow(unused_imports)]',
'use std::ffi::c_char;',
'#[allow(unused_imports)]',
'use util::bindings;',
'',
'#[inline(always)]',
'fn trace_event_state_is_enabled(dstate: u16) -> bool {',
' (unsafe { trace_events_enabled_count }) != 0 && dstate != 0',
'}',
'',
'extern "C" {',
' static mut trace_events_enabled_count: u32;',
'}',)
out('extern "C" {')
for e in events:
out(' static mut %s: u16;' % e.api(e.QEMU_DSTATE))
out('}')
backend.generate_begin(events, group)
for e in events:
out('',
'#[inline(always)]',
'#[allow(dead_code)]',
'pub fn %(api)s(%(args)s)',
'{',
api=e.api(e.QEMU_TRACE),
args=e.args.rust_decl())
if "disable" not in e.properties:
backend.generate(e, group, check_trace_event_get_state=False)
if backend.check_trace_event_get_state:
event_id = 'TRACE_' + e.name.upper()
out(' if trace_event_state_is_enabled(unsafe { _%(event_id)s_DSTATE}) {',
event_id = event_id,
api=e.api())
backend.generate(e, group, check_trace_event_get_state=True)
out(' }')
out('}')
backend.generate_end(events, group)
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