LXR qemu/stubs/trace-control.c

   1/*
   2 * Interface for configuring and controlling the state of tracing events.
   3 *
   4 * Copyright (C) 2014-2016 Lluís Vilanova <vilanova@ac.upc.edu>
   5 *
   6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
   7 * See the COPYING file in the top-level directory.
   8 */
   9
  10#include "qemu/osdep.h"
  11#include "trace/control.h"
  12
  13
  14void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state)
  15{
  16    trace_event_set_state_dynamic(ev, state);
  17}
  18
  19void trace_event_set_state_dynamic(TraceEvent *ev, bool state)
  20{
  21    bool state_pre;
  22    assert(trace_event_get_state_static(ev));
  23
  24    /*
  25     * We ignore the "vcpu" property here, since there's no target code. Then
  26     * dstate can only be 1 or 0.
  27     */
  28    state_pre = *(ev->dstate);
  29    if (state_pre != state) {
  30        if (state) {
  31            trace_events_enabled_count++;
  32            *(ev->dstate) = 1;
  33        } else {
  34            trace_events_enabled_count--;
  35            *(ev->dstate) = 0;
  36        }
  37    }
  38}
  39
  40void trace_event_set_vcpu_state_dynamic(CPUState *vcpu,
  41                                        TraceEvent *ev, bool state)
  42{
  43    /* should never be called on non-target binaries */
  44    abort();
  45}
  46
  47void trace_init_vcpu(CPUState *vcpu)
  48{
  49    /* should never be called on non-target binaries */
  50    abort();
  51}
  52