#!/usr/bin/env python # -*- coding: utf-8 -*- """ trace/generated-tracers.h """ __author__ = "Lluís Vilanova <vilanova@ac.upc.edu>" __copyright__ = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>" __license__ = "GPL version 2 or (at your option) any later version" __maintainer__ = "Stefan Hajnoczi" __email__ = "stefanha@linux.vnet.ibm.com" from tracetool import out def generate(events, backend, group): out('/* This file is autogenerated by tracetool, do not edit. */', '', '#ifndef TRACE_%s_GENERATED_TRACERS_H' % group.upper(), '#define TRACE_%s_GENERATED_TRACERS_H' % group.upper(), '', '#include "qemu-common.h"', '#include "trace/control.h"', '') for e in events: out('extern TraceEvent %(event)s;', event = e.api(e.QEMU_EVENT)) for e in events: out('extern uint16_t %s;' % e.api(e.QEMU_DSTATE)) # static state for e in events: if 'disable' in e.properties: enabled = 0 else: enabled = 1 if "tcg-exec" in e.properties: # a single define for the two "sub-events" out('#define TRACE_%(name)s_ENABLED %(enabled)d', name=e.original.name.upper(), enabled=enabled) out('#define TRACE_%s_ENABLED %d' % (e.name.upper(), enabled)) backend.generate_begin(events, group) for e in events: # tracer-specific dstate out('', '#define %(api)s() ( \\', api=e.api(e.QEMU_BACKEND_DSTATE)) if "disable" not in e.properties: backend.generate_backend_dstate(e, group) out(' false)') # tracer without checks out('', 'static inline void %(api)s(%(args)s)', '{', api=e.api(e.QEMU_TRACE_NOCHECK), args=e.args) if "disable" not in e.properties: backend.generate(e, group) out('}') # tracer wrapper with checks (per-vCPU tracing) if "vcpu" in e.properties: trace_cpu = next(iter(e.args))[1] cond = "trace_event_get_vcpu_state(%(cpu)s,"\ " TRACE_%(id)s)"\ % dict( cpu=trace_cpu, id=e.name.upper()) else: cond = "true" out('', 'static inline void %(api)s(%(args)s)', '{', ' if (%(cond)s) {', ' %(api_nocheck)s(%(names)s);', ' }', '}', api=e.api(), api_nocheck=e.api(e.QEMU_TRACE_NOCHECK), args=e.args, names=", ".join(e.args.names()), cond=cond) backend.generate_end(events, group) out('#endif /* TRACE_%s_GENERATED_TRACERS_H */' % group.upper())