qemu

FORK: QEMU emulator
git clone https://git.neptards.moe/neptards/qemu.git
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trace-control.c (1285B)

      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 
     14 void trace_event_set_state_dynamic_init(TraceEvent *ev, bool state)
     15 {
     16     trace_event_set_state_dynamic(ev, state);
     17 }
     18 
     19 void 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 
     40 void 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 
     47 void trace_init_vcpu(CPUState *vcpu)
     48 {
     49     /* should never be called on non-target binaries */
     50     abort();
     51 }