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- /*
- * Interface for configuring and controlling the state of tracing events.
- *
- * Copyright (C) 2014-2017 Lluís Vilanova <vilanova@ac.upc.edu>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
- #include "qemu/osdep.h"
- #include "trace/control.h"
- void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state)
- {
- bool state_pre;
- assert(trace_event_get_state_static(ev));
- /*
- * We ignore the "vcpu" property here, since no vCPUs have been created
- * yet. Then dstate can only be 1 or 0.
- */
- state_pre = *ev->dstate;
- if (state_pre != state) {
- if (state) {
- trace_events_enabled_count++;
- *ev->dstate = 1;
- } else {
- trace_events_enabled_count--;
- *ev->dstate = 0;
- }
- }
- }
- void trace_event_set_state_dynamic(TraceEvent *ev, bool state)
- {
- assert(trace_event_get_state_static(ev));
- /*
- * There is no longer a "vcpu" property, dstate can only be 1 or
- * 0. With it, we haven't instantiated any vCPU yet, so we will
- * set a global state instead, and trace_init_vcpu will reconcile
- * it afterwards.
- */
- bool state_pre = *ev->dstate;
- if (state_pre != state) {
- if (state) {
- trace_events_enabled_count++;
- *ev->dstate = 1;
- } else {
- trace_events_enabled_count--;
- *ev->dstate = 0;
- }
- }
- }
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