Commit | Line | Data |
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8ad8db37 IM |
1 | |
2 | #include "../perf.h" | |
3 | #include "util.h" | |
4 | #include "parse-options.h" | |
5 | #include "parse-events.h" | |
6 | #include "exec_cmd.h" | |
7 | ||
8 | int nr_counters; | |
9 | ||
10 | __u64 event_id[MAX_COUNTERS] = { }; | |
5242519b | 11 | int event_mask[MAX_COUNTERS]; |
8ad8db37 IM |
12 | |
13 | struct event_symbol { | |
14 | __u64 event; | |
15 | char *symbol; | |
16 | }; | |
17 | ||
18 | static struct event_symbol event_symbols[] = { | |
19 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CPU_CYCLES), "cpu-cycles", }, | |
20 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CPU_CYCLES), "cycles", }, | |
21 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_INSTRUCTIONS), "instructions", }, | |
22 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_REFERENCES), "cache-references", }, | |
23 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_MISSES), "cache-misses", }, | |
24 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_INSTRUCTIONS), "branch-instructions", }, | |
25 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_INSTRUCTIONS), "branches", }, | |
26 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_MISSES), "branch-misses", }, | |
27 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BUS_CYCLES), "bus-cycles", }, | |
28 | ||
29 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_CLOCK), "cpu-clock", }, | |
30 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK), "task-clock", }, | |
31 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS), "page-faults", }, | |
32 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS), "faults", }, | |
33 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS_MIN), "minor-faults", }, | |
34 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS_MAJ), "major-faults", }, | |
35 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CONTEXT_SWITCHES), "context-switches", }, | |
36 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CONTEXT_SWITCHES), "cs", }, | |
37 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_MIGRATIONS), "cpu-migrations", }, | |
38 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_MIGRATIONS), "migrations", }, | |
39 | }; | |
40 | ||
5242519b IM |
41 | #define __PERF_COUNTER_FIELD(config, name) \ |
42 | ((config & PERF_COUNTER_##name##_MASK) >> PERF_COUNTER_##name##_SHIFT) | |
43 | ||
44 | #define PERF_COUNTER_RAW(config) __PERF_COUNTER_FIELD(config, RAW) | |
45 | #define PERF_COUNTER_CONFIG(config) __PERF_COUNTER_FIELD(config, CONFIG) | |
46 | #define PERF_COUNTER_TYPE(config) __PERF_COUNTER_FIELD(config, TYPE) | |
47 | #define PERF_COUNTER_ID(config) __PERF_COUNTER_FIELD(config, EVENT) | |
48 | ||
49 | static char *hw_event_names[] = { | |
50 | "CPU cycles", | |
51 | "instructions", | |
52 | "cache references", | |
53 | "cache misses", | |
54 | "branches", | |
55 | "branch misses", | |
56 | "bus cycles", | |
57 | }; | |
58 | ||
59 | static char *sw_event_names[] = { | |
60 | "cpu clock ticks", | |
61 | "task clock ticks", | |
62 | "pagefaults", | |
63 | "context switches", | |
64 | "CPU migrations", | |
65 | "minor faults", | |
66 | "major faults", | |
67 | }; | |
68 | ||
69 | char *event_name(int ctr) | |
70 | { | |
71 | __u64 config = event_id[ctr]; | |
72 | int type = PERF_COUNTER_TYPE(config); | |
73 | int id = PERF_COUNTER_ID(config); | |
74 | static char buf[32]; | |
75 | ||
76 | if (PERF_COUNTER_RAW(config)) { | |
77 | sprintf(buf, "raw 0x%llx", PERF_COUNTER_CONFIG(config)); | |
78 | return buf; | |
79 | } | |
80 | ||
81 | switch (type) { | |
82 | case PERF_TYPE_HARDWARE: | |
83 | if (id < PERF_HW_EVENTS_MAX) | |
84 | return hw_event_names[id]; | |
85 | return "unknown-hardware"; | |
86 | ||
87 | case PERF_TYPE_SOFTWARE: | |
88 | if (id < PERF_SW_EVENTS_MAX) | |
89 | return sw_event_names[id]; | |
90 | return "unknown-software"; | |
91 | ||
92 | default: | |
93 | break; | |
94 | } | |
95 | ||
96 | return "unknown"; | |
97 | } | |
98 | ||
8ad8db37 IM |
99 | /* |
100 | * Each event can have multiple symbolic names. | |
101 | * Symbolic names are (almost) exactly matched. | |
102 | */ | |
103 | static __u64 match_event_symbols(const char *str) | |
104 | { | |
105 | __u64 config, id; | |
106 | int type; | |
107 | unsigned int i; | |
5242519b | 108 | char mask_str[4]; |
8ad8db37 IM |
109 | |
110 | if (sscanf(str, "r%llx", &config) == 1) | |
111 | return config | PERF_COUNTER_RAW_MASK; | |
112 | ||
5242519b IM |
113 | switch (sscanf(str, "%d:%llu:%2s", &type, &id, mask_str)) { |
114 | case 3: | |
115 | if (strchr(mask_str, 'k')) | |
116 | event_mask[nr_counters] |= EVENT_MASK_USER; | |
117 | if (strchr(mask_str, 'u')) | |
118 | event_mask[nr_counters] |= EVENT_MASK_KERNEL; | |
119 | case 2: | |
120 | return EID(type, id); | |
121 | ||
122 | default: | |
123 | break; | |
124 | } | |
8ad8db37 IM |
125 | |
126 | for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { | |
127 | if (!strncmp(str, event_symbols[i].symbol, | |
128 | strlen(event_symbols[i].symbol))) | |
129 | return event_symbols[i].event; | |
130 | } | |
131 | ||
132 | return ~0ULL; | |
133 | } | |
134 | ||
135 | int parse_events(const struct option *opt, const char *str, int unset) | |
136 | { | |
137 | __u64 config; | |
138 | ||
139 | again: | |
140 | if (nr_counters == MAX_COUNTERS) | |
141 | return -1; | |
142 | ||
143 | config = match_event_symbols(str); | |
144 | if (config == ~0ULL) | |
145 | return -1; | |
146 | ||
147 | event_id[nr_counters] = config; | |
148 | nr_counters++; | |
149 | ||
150 | str = strstr(str, ","); | |
151 | if (str) { | |
152 | str++; | |
153 | goto again; | |
154 | } | |
155 | ||
156 | return 0; | |
157 | } | |
158 | ||
8ad8db37 IM |
159 | /* |
160 | * Create the help text for the event symbols: | |
161 | */ | |
162 | void create_events_help(char *events_help_msg) | |
163 | { | |
164 | unsigned int i; | |
165 | char *str; | |
166 | __u64 e; | |
167 | ||
168 | str = events_help_msg; | |
169 | ||
170 | str += sprintf(str, | |
171 | "event name: ["); | |
172 | ||
173 | for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { | |
174 | int type, id; | |
175 | ||
176 | e = event_symbols[i].event; | |
177 | type = PERF_COUNTER_TYPE(e); | |
178 | id = PERF_COUNTER_ID(e); | |
179 | ||
180 | if (i) | |
181 | str += sprintf(str, "|"); | |
182 | ||
183 | str += sprintf(str, "%s", | |
184 | event_symbols[i].symbol); | |
185 | } | |
186 | ||
187 | str += sprintf(str, "|rNNN]"); | |
188 | } | |
189 |