pcie_aer: support configurable AER capa version
[qemu.git] / trace / control-internal.h
1 /*
2 * Interface for configuring and controlling the state of tracing events.
3 *
4 * Copyright (C) 2011-2016 LluĂ­s 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 #ifndef TRACE__CONTROL_INTERNAL_H
11 #define TRACE__CONTROL_INTERNAL_H
12
13 #include <stddef.h> /* size_t */
14
15 #include "qom/cpu.h"
16
17
18 extern int trace_events_enabled_count;
19
20
21 static inline bool trace_event_is_pattern(const char *str)
22 {
23 assert(str != NULL);
24 return strchr(str, '*') != NULL;
25 }
26
27 static inline uint32_t trace_event_get_id(TraceEvent *ev)
28 {
29 assert(ev != NULL);
30 return ev->id;
31 }
32
33 static inline uint32_t trace_event_get_vcpu_id(TraceEvent *ev)
34 {
35 return ev->vcpu_id;
36 }
37
38 static inline bool trace_event_is_vcpu(TraceEvent *ev)
39 {
40 return ev->vcpu_id != TRACE_VCPU_EVENT_NONE;
41 }
42
43 static inline const char * trace_event_get_name(TraceEvent *ev)
44 {
45 assert(ev != NULL);
46 return ev->name;
47 }
48
49 static inline bool trace_event_get_state_static(TraceEvent *ev)
50 {
51 assert(ev != NULL);
52 return ev->sstate;
53 }
54
55 /* it's on fast path, avoid consistency checks (asserts) */
56 #define trace_event_get_state_dynamic_by_id(id) \
57 (unlikely(trace_events_enabled_count) && _ ## id ## _DSTATE)
58
59 static inline bool trace_event_get_state_dynamic(TraceEvent *ev)
60 {
61 return unlikely(trace_events_enabled_count) && *ev->dstate;
62 }
63
64 static inline bool
65 trace_event_get_vcpu_state_dynamic_by_vcpu_id(CPUState *vcpu,
66 uint32_t vcpu_id)
67 {
68 /* it's on fast path, avoid consistency checks (asserts) */
69 if (unlikely(trace_events_enabled_count)) {
70 return test_bit(vcpu_id, vcpu->trace_dstate);
71 } else {
72 return false;
73 }
74 }
75
76 static inline bool trace_event_get_vcpu_state_dynamic(CPUState *vcpu,
77 TraceEvent *ev)
78 {
79 uint32_t vcpu_id;
80 assert(trace_event_is_vcpu(ev));
81 vcpu_id = trace_event_get_vcpu_id(ev);
82 return trace_event_get_vcpu_state_dynamic_by_vcpu_id(vcpu, vcpu_id);
83 }
84
85
86 void trace_event_register_group(TraceEvent **events);
87
88 #endif /* TRACE__CONTROL_INTERNAL_H */