1#!/usr/bin/env python 2# -*- coding: utf-8 -*- 3 4""" 5trace/generated-tracers.h 6""" 7 8__author__ = "Lluís Vilanova <vilanova@ac.upc.edu>" 9__copyright__ = "Copyright 2012-2017, Lluís Vilanova <vilanova@ac.upc.edu>" 10__license__ = "GPL version 2 or (at your option) any later version" 11 12__maintainer__ = "Stefan Hajnoczi" 13__email__ = "stefanha@linux.vnet.ibm.com" 14 15 16from tracetool import out 17 18 19def generate(events, backend, group): 20 out('/* This file is autogenerated by tracetool, do not edit. */', 21 '', 22 '#ifndef TRACE_%s_GENERATED_TRACERS_H' % group.upper(), 23 '#define TRACE_%s_GENERATED_TRACERS_H' % group.upper(), 24 '', 25 '#include "trace/control.h"', 26 '') 27 28 for e in events: 29 out('extern TraceEvent %(event)s;', 30 event = e.api(e.QEMU_EVENT)) 31 32 for e in events: 33 out('extern uint16_t %s;' % e.api(e.QEMU_DSTATE)) 34 35 # static state 36 for e in events: 37 if 'disable' in e.properties: 38 enabled = 0 39 else: 40 enabled = 1 41 if "tcg-exec" in e.properties: 42 # a single define for the two "sub-events" 43 out('#define TRACE_%(name)s_ENABLED %(enabled)d', 44 name=e.original.name.upper(), 45 enabled=enabled) 46 out('#define TRACE_%s_ENABLED %d' % (e.name.upper(), enabled)) 47 48 backend.generate_begin(events, group) 49 50 for e in events: 51 # tracer-specific dstate 52 out('', 53 '#define %(api)s() ( \\', 54 api=e.api(e.QEMU_BACKEND_DSTATE)) 55 56 if "disable" not in e.properties: 57 backend.generate_backend_dstate(e, group) 58 59 out(' false)') 60 61 # tracer without checks 62 out('', 63 'static inline void %(api)s(%(args)s)', 64 '{', 65 api=e.api(e.QEMU_TRACE_NOCHECK), 66 args=e.args) 67 68 if "disable" not in e.properties: 69 backend.generate(e, group) 70 71 out('}') 72 73 # tracer wrapper with checks (per-vCPU tracing) 74 if "vcpu" in e.properties: 75 trace_cpu = next(iter(e.args))[1] 76 cond = "trace_event_get_vcpu_state(%(cpu)s,"\ 77 " TRACE_%(id)s)"\ 78 % dict( 79 cpu=trace_cpu, 80 id=e.name.upper()) 81 else: 82 cond = "true" 83 84 out('', 85 'static inline void %(api)s(%(args)s)', 86 '{', 87 ' if (%(cond)s) {', 88 ' %(api_nocheck)s(%(names)s);', 89 ' }', 90 '}', 91 api=e.api(), 92 api_nocheck=e.api(e.QEMU_TRACE_NOCHECK), 93 args=e.args, 94 names=", ".join(e.args.names()), 95 cond=cond) 96 97 backend.generate_end(events, group) 98 99 out('#endif /* TRACE_%s_GENERATED_TRACERS_H */' % group.upper()) 100