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a506a1b167
Signed-off-by: Pierrick Bouvier <pierrick.bouvier@linaro.org> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Tested-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20250305050716.3460989-1-pierrick.bouvier@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
55 lines
1.4 KiB
C
55 lines
1.4 KiB
C
/*
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* Interface for configuring and controlling the state of tracing events.
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*
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* Copyright (C) 2014-2017 Lluís Vilanova <vilanova@ac.upc.edu>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include "trace/control.h"
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void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state)
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{
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bool state_pre;
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assert(trace_event_get_state_static(ev));
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/*
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* We ignore the "vcpu" property here, since no vCPUs have been created
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* yet. Then dstate can only be 1 or 0.
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*/
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state_pre = *ev->dstate;
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if (state_pre != state) {
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if (state) {
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trace_events_enabled_count++;
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*ev->dstate = 1;
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} else {
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trace_events_enabled_count--;
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*ev->dstate = 0;
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}
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}
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}
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void trace_event_set_state_dynamic(TraceEvent *ev, bool state)
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{
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assert(trace_event_get_state_static(ev));
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/*
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* There is no longer a "vcpu" property, dstate can only be 1 or
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* 0. With it, we haven't instantiated any vCPU yet, so we will
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* set a global state instead, and trace_init_vcpu will reconcile
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* it afterwards.
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*/
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bool state_pre = *ev->dstate;
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if (state_pre != state) {
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if (state) {
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trace_events_enabled_count++;
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*ev->dstate = 1;
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} else {
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trace_events_enabled_count--;
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*ev->dstate = 0;
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}
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}
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}
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