| # -*- 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): |
| if group == "root": |
| header = "trace/control-vcpu.h" |
| else: |
| header = "trace/control.h" |
| |
| 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 "%s"' % header, |
| '') |
| |
| 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()) |