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5b808275f3
Adds support to compile QEMU with multiple tracing backends at the same time. For example, you can compile QEMU with: $ ./configure --enable-trace-backends=ftrace,dtrace Where 'ftrace' can be handy for having an in-flight record of events, and 'dtrace' can be later used to extract more information from the system. This patch allows having both available without recompiling QEMU. Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
68 lines
1.4 KiB
C
68 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) 2011-2014 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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#ifndef TRACE__CONTROL_INTERNAL_H
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#define TRACE__CONTROL_INTERNAL_H
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#include <string.h>
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extern TraceEvent trace_events[];
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static inline TraceEventID trace_event_count(void)
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{
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return TRACE_EVENT_COUNT;
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}
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static inline TraceEvent *trace_event_id(TraceEventID id)
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{
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assert(id < trace_event_count());
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return &trace_events[id];
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}
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static inline bool trace_event_is_pattern(const char *str)
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{
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assert(str != NULL);
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return strchr(str, '*') != NULL;
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}
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static inline TraceEventID trace_event_get_id(TraceEvent *ev)
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{
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assert(ev != NULL);
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return ev->id;
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}
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static inline const char * trace_event_get_name(TraceEvent *ev)
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{
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assert(ev != NULL);
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return ev->name;
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}
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static inline bool trace_event_get_state_static(TraceEvent *ev)
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{
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assert(ev != NULL);
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return ev->sstate;
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}
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static inline bool trace_event_get_state_dynamic(TraceEvent *ev)
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{
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assert(ev != NULL);
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return ev->dstate;
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}
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static inline void trace_event_set_state_dynamic(TraceEvent *ev, bool state)
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{
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assert(ev != NULL);
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assert(trace_event_get_state_static(ev));
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ev->dstate = state;
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}
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#endif /* TRACE__CONTROL_INTERNAL_H */
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