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" | |
a0055ae2 | 7 | #include "string.h" |
8ad8db37 IM |
8 | |
9 | int nr_counters; | |
10 | ||
11 | __u64 event_id[MAX_COUNTERS] = { }; | |
5242519b | 12 | int event_mask[MAX_COUNTERS]; |
8ad8db37 IM |
13 | |
14 | struct event_symbol { | |
15 | __u64 event; | |
16 | char *symbol; | |
17 | }; | |
18 | ||
19 | static struct event_symbol event_symbols[] = { | |
20 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CPU_CYCLES), "cpu-cycles", }, | |
21 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CPU_CYCLES), "cycles", }, | |
22 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_INSTRUCTIONS), "instructions", }, | |
23 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_REFERENCES), "cache-references", }, | |
24 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_CACHE_MISSES), "cache-misses", }, | |
25 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_INSTRUCTIONS), "branch-instructions", }, | |
26 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_INSTRUCTIONS), "branches", }, | |
27 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BRANCH_MISSES), "branch-misses", }, | |
28 | {EID(PERF_TYPE_HARDWARE, PERF_COUNT_BUS_CYCLES), "bus-cycles", }, | |
29 | ||
30 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_CLOCK), "cpu-clock", }, | |
31 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_TASK_CLOCK), "task-clock", }, | |
32 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS), "page-faults", }, | |
33 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS), "faults", }, | |
34 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS_MIN), "minor-faults", }, | |
35 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_PAGE_FAULTS_MAJ), "major-faults", }, | |
36 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CONTEXT_SWITCHES), "context-switches", }, | |
37 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CONTEXT_SWITCHES), "cs", }, | |
38 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_MIGRATIONS), "cpu-migrations", }, | |
39 | {EID(PERF_TYPE_SOFTWARE, PERF_COUNT_CPU_MIGRATIONS), "migrations", }, | |
40 | }; | |
41 | ||
5242519b IM |
42 | #define __PERF_COUNTER_FIELD(config, name) \ |
43 | ((config & PERF_COUNTER_##name##_MASK) >> PERF_COUNTER_##name##_SHIFT) | |
44 | ||
45 | #define PERF_COUNTER_RAW(config) __PERF_COUNTER_FIELD(config, RAW) | |
46 | #define PERF_COUNTER_CONFIG(config) __PERF_COUNTER_FIELD(config, CONFIG) | |
47 | #define PERF_COUNTER_TYPE(config) __PERF_COUNTER_FIELD(config, TYPE) | |
48 | #define PERF_COUNTER_ID(config) __PERF_COUNTER_FIELD(config, EVENT) | |
49 | ||
50 | static char *hw_event_names[] = { | |
51 | "CPU cycles", | |
52 | "instructions", | |
53 | "cache references", | |
54 | "cache misses", | |
55 | "branches", | |
56 | "branch misses", | |
57 | "bus cycles", | |
58 | }; | |
59 | ||
60 | static char *sw_event_names[] = { | |
61 | "cpu clock ticks", | |
62 | "task clock ticks", | |
63 | "pagefaults", | |
64 | "context switches", | |
65 | "CPU migrations", | |
66 | "minor faults", | |
67 | "major faults", | |
68 | }; | |
69 | ||
70 | char *event_name(int ctr) | |
71 | { | |
72 | __u64 config = event_id[ctr]; | |
73 | int type = PERF_COUNTER_TYPE(config); | |
74 | int id = PERF_COUNTER_ID(config); | |
75 | static char buf[32]; | |
76 | ||
77 | if (PERF_COUNTER_RAW(config)) { | |
78 | sprintf(buf, "raw 0x%llx", PERF_COUNTER_CONFIG(config)); | |
79 | return buf; | |
80 | } | |
81 | ||
82 | switch (type) { | |
83 | case PERF_TYPE_HARDWARE: | |
84 | if (id < PERF_HW_EVENTS_MAX) | |
85 | return hw_event_names[id]; | |
86 | return "unknown-hardware"; | |
87 | ||
88 | case PERF_TYPE_SOFTWARE: | |
89 | if (id < PERF_SW_EVENTS_MAX) | |
90 | return sw_event_names[id]; | |
91 | return "unknown-software"; | |
92 | ||
93 | default: | |
94 | break; | |
95 | } | |
96 | ||
97 | return "unknown"; | |
98 | } | |
99 | ||
8ad8db37 IM |
100 | /* |
101 | * Each event can have multiple symbolic names. | |
102 | * Symbolic names are (almost) exactly matched. | |
103 | */ | |
104 | static __u64 match_event_symbols(const char *str) | |
105 | { | |
106 | __u64 config, id; | |
107 | int type; | |
108 | unsigned int i; | |
a0055ae2 | 109 | const char *sep, *pstr; |
8ad8db37 | 110 | |
a0055ae2 | 111 | if (str[0] == 'r' && hex2u64(str + 1, &config) > 0) |
8ad8db37 IM |
112 | return config | PERF_COUNTER_RAW_MASK; |
113 | ||
a0055ae2 ACM |
114 | pstr = str; |
115 | sep = strchr(pstr, ':'); | |
116 | if (sep) { | |
117 | type = atoi(pstr); | |
118 | pstr = sep + 1; | |
119 | id = atoi(pstr); | |
120 | sep = strchr(pstr, ':'); | |
121 | if (sep) { | |
122 | pstr = sep + 1; | |
123 | if (strchr(pstr, 'k')) | |
5242519b | 124 | event_mask[nr_counters] |= EVENT_MASK_USER; |
a0055ae2 | 125 | if (strchr(pstr, 'u')) |
5242519b | 126 | event_mask[nr_counters] |= EVENT_MASK_KERNEL; |
a0055ae2 ACM |
127 | } |
128 | return EID(type, id); | |
5242519b | 129 | } |
8ad8db37 IM |
130 | |
131 | for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { | |
132 | if (!strncmp(str, event_symbols[i].symbol, | |
133 | strlen(event_symbols[i].symbol))) | |
134 | return event_symbols[i].event; | |
135 | } | |
136 | ||
137 | return ~0ULL; | |
138 | } | |
139 | ||
140 | int parse_events(const struct option *opt, const char *str, int unset) | |
141 | { | |
142 | __u64 config; | |
143 | ||
144 | again: | |
145 | if (nr_counters == MAX_COUNTERS) | |
146 | return -1; | |
147 | ||
148 | config = match_event_symbols(str); | |
149 | if (config == ~0ULL) | |
150 | return -1; | |
151 | ||
152 | event_id[nr_counters] = config; | |
153 | nr_counters++; | |
154 | ||
155 | str = strstr(str, ","); | |
156 | if (str) { | |
157 | str++; | |
158 | goto again; | |
159 | } | |
160 | ||
161 | return 0; | |
162 | } | |
163 | ||
8ad8db37 IM |
164 | /* |
165 | * Create the help text for the event symbols: | |
166 | */ | |
167 | void create_events_help(char *events_help_msg) | |
168 | { | |
169 | unsigned int i; | |
170 | char *str; | |
171 | __u64 e; | |
172 | ||
173 | str = events_help_msg; | |
174 | ||
175 | str += sprintf(str, | |
176 | "event name: ["); | |
177 | ||
178 | for (i = 0; i < ARRAY_SIZE(event_symbols); i++) { | |
179 | int type, id; | |
180 | ||
181 | e = event_symbols[i].event; | |
182 | type = PERF_COUNTER_TYPE(e); | |
183 | id = PERF_COUNTER_ID(e); | |
184 | ||
185 | if (i) | |
186 | str += sprintf(str, "|"); | |
187 | ||
188 | str += sprintf(str, "%s", | |
189 | event_symbols[i].symbol); | |
190 | } | |
191 | ||
192 | str += sprintf(str, "|rNNN]"); | |
193 | } | |
194 |