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1 | /* |
2 | * HMP commands related to tracing | |
3 | * | |
4 | * Copyright (c) 2003-2004 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
25 | #include "qemu/osdep.h" | |
26 | #include "monitor/hmp.h" | |
27 | #include "monitor/monitor.h" | |
28 | #include "qapi/error.h" | |
29 | #include "qapi/qapi-commands-trace.h" | |
30 | #include "qapi/qmp/qdict.h" | |
31 | #include "trace/control.h" | |
32 | #ifdef CONFIG_TRACE_SIMPLE | |
33 | #include "trace/simple.h" | |
34 | #endif | |
35 | ||
36 | void hmp_trace_event(Monitor *mon, const QDict *qdict) | |
37 | { | |
38 | const char *tp_name = qdict_get_str(qdict, "name"); | |
39 | bool new_state = qdict_get_bool(qdict, "option"); | |
40 | bool has_vcpu = qdict_haskey(qdict, "vcpu"); | |
41 | int vcpu = qdict_get_try_int(qdict, "vcpu", 0); | |
42 | Error *local_err = NULL; | |
43 | ||
44 | if (vcpu < 0) { | |
45 | monitor_printf(mon, "argument vcpu must be positive"); | |
46 | return; | |
47 | } | |
48 | ||
49 | qmp_trace_event_set_state(tp_name, new_state, true, true, has_vcpu, vcpu, &local_err); | |
50 | if (local_err) { | |
51 | error_report_err(local_err); | |
52 | } | |
53 | } | |
54 | ||
55 | #ifdef CONFIG_TRACE_SIMPLE | |
56 | void hmp_trace_file(Monitor *mon, const QDict *qdict) | |
57 | { | |
58 | const char *op = qdict_get_try_str(qdict, "op"); | |
59 | const char *arg = qdict_get_try_str(qdict, "arg"); | |
60 | ||
61 | if (!op) { | |
62 | st_print_trace_file_status(); | |
63 | } else if (!strcmp(op, "on")) { | |
64 | st_set_trace_file_enabled(true); | |
65 | } else if (!strcmp(op, "off")) { | |
66 | st_set_trace_file_enabled(false); | |
67 | } else if (!strcmp(op, "flush")) { | |
68 | st_flush_trace_buffer(); | |
69 | } else if (!strcmp(op, "set")) { | |
70 | if (arg) { | |
71 | st_set_trace_file(arg); | |
72 | } | |
73 | } else { | |
74 | monitor_printf(mon, "unexpected argument \"%s\"\n", op); | |
75 | hmp_help_cmd(mon, "trace-file"); | |
76 | } | |
77 | } | |
78 | #endif | |
79 | ||
80 | void hmp_info_trace_events(Monitor *mon, const QDict *qdict) | |
81 | { | |
82 | const char *name = qdict_get_try_str(qdict, "name"); | |
83 | bool has_vcpu = qdict_haskey(qdict, "vcpu"); | |
84 | int vcpu = qdict_get_try_int(qdict, "vcpu", 0); | |
85 | TraceEventInfoList *events; | |
86 | TraceEventInfoList *elem; | |
87 | Error *local_err = NULL; | |
88 | ||
89 | if (name == NULL) { | |
90 | name = "*"; | |
91 | } | |
92 | if (vcpu < 0) { | |
93 | monitor_printf(mon, "argument vcpu must be positive"); | |
94 | return; | |
95 | } | |
96 | ||
97 | events = qmp_trace_event_get_state(name, has_vcpu, vcpu, &local_err); | |
98 | if (local_err) { | |
99 | error_report_err(local_err); | |
100 | return; | |
101 | } | |
102 | ||
103 | for (elem = events; elem != NULL; elem = elem->next) { | |
104 | monitor_printf(mon, "%s : state %u\n", | |
105 | elem->value->name, | |
106 | elem->value->state == TRACE_EVENT_STATE_ENABLED ? 1 : 0); | |
107 | } | |
108 | qapi_free_TraceEventInfoList(events); | |
109 | } | |
110 | ||
111 | void info_trace_events_completion(ReadLineState *rs, int nb_args, const char *str) | |
112 | { | |
113 | size_t len; | |
114 | ||
115 | len = strlen(str); | |
116 | readline_set_completion_index(rs, len); | |
117 | if (nb_args == 2) { | |
118 | TraceEventIter iter; | |
119 | TraceEvent *ev; | |
120 | char *pattern = g_strdup_printf("%s*", str); | |
121 | trace_event_iter_init_pattern(&iter, pattern); | |
122 | while ((ev = trace_event_iter_next(&iter)) != NULL) { | |
123 | readline_add_completion(rs, trace_event_get_name(ev)); | |
124 | } | |
125 | g_free(pattern); | |
126 | } | |
127 | } | |
128 | ||
129 | void trace_event_completion(ReadLineState *rs, int nb_args, const char *str) | |
130 | { | |
131 | size_t len; | |
132 | ||
133 | len = strlen(str); | |
134 | readline_set_completion_index(rs, len); | |
135 | if (nb_args == 2) { | |
136 | TraceEventIter iter; | |
137 | TraceEvent *ev; | |
138 | char *pattern = g_strdup_printf("%s*", str); | |
139 | trace_event_iter_init_pattern(&iter, pattern); | |
140 | while ((ev = trace_event_iter_next(&iter)) != NULL) { | |
141 | readline_add_completion(rs, trace_event_get_name(ev)); | |
142 | } | |
143 | g_free(pattern); | |
144 | } else if (nb_args == 3) { | |
145 | readline_add_completion_of(rs, str, "on"); | |
146 | readline_add_completion_of(rs, str, "off"); | |
147 | } | |
148 | } |