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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
d2709c7c | 2 | #include <linux/hw_breakpoint.h> |
8dd2a131 | 3 | #include <linux/err.h> |
7f7c536f | 4 | #include <linux/zalloc.h> |
76b31a29 | 5 | #include <dirent.h> |
a43783ae | 6 | #include <errno.h> |
86a5e0c2 | 7 | #include <sys/ioctl.h> |
bafae98e ACM |
8 | #include <sys/types.h> |
9 | #include <sys/stat.h> | |
10 | #include <fcntl.h> | |
391e4206 | 11 | #include <sys/param.h> |
b0742e90 | 12 | #include "term.h" |
4a3cec84 | 13 | #include "build-id.h" |
361c99a6 | 14 | #include "evlist.h" |
69aad6f1 | 15 | #include "evsel.h" |
fa0d9846 | 16 | #include <subcmd/pager.h> |
4b6ab94e | 17 | #include <subcmd/parse-options.h> |
8ad8db37 | 18 | #include "parse-events.h" |
4b6ab94e | 19 | #include <subcmd/exec-cmd.h> |
a067558e | 20 | #include "string2.h" |
8ec20b17 | 21 | #include "strlist.h" |
5aab621b | 22 | #include "symbol.h" |
8755a8f2 | 23 | #include "header.h" |
84c86ca1 | 24 | #include "bpf-loader.h" |
6e81c74c | 25 | #include "debug.h" |
592d5a6b | 26 | #include <api/fs/tracing_path.h> |
9c3516d1 | 27 | #include <perf/cpumap.h> |
ac20de6f | 28 | #include "parse-events-bison.h" |
90e2b22d | 29 | #define YY_EXTRA_TYPE int |
89812fc8 | 30 | #include "parse-events-flex.h" |
5f537a26 | 31 | #include "pmu.h" |
b41f1cec | 32 | #include "thread_map.h" |
40218dae | 33 | #include "probe-file.h" |
b39b8393 | 34 | #include "asm/bug.h" |
ac12f676 | 35 | #include "util/parse-branch-options.h" |
71b0acce | 36 | #include "metricgroup.h" |
95be9d19 | 37 | #include "util/evsel_config.h" |
252a2fdc | 38 | #include "util/event.h" |
89812fc8 JO |
39 | |
40 | #define MAX_NAME_LEN 100 | |
8ad8db37 | 41 | |
82ba1f2f JO |
42 | #ifdef PARSER_DEBUG |
43 | extern int parse_events_debug; | |
44 | #endif | |
5d9cdc11 | 45 | int parse_events_parse(void *parse_state, void *scanner); |
e637d177 HK |
46 | static int get_config_terms(struct list_head *head_config, |
47 | struct list_head *head_terms __maybe_unused); | |
bcd3279f | 48 | |
dcb4e102 KL |
49 | static struct perf_pmu_event_symbol *perf_pmu_events_list; |
50 | /* | |
51 | * The variable indicates the number of supported pmu event symbols. | |
52 | * 0 means not initialized and ready to init | |
53 | * -1 means failed to init, don't try anymore | |
54 | * >0 is the number of supported pmu event symbols | |
55 | */ | |
56 | static int perf_pmu_events_list_num; | |
57 | ||
705750f2 | 58 | struct event_symbol event_symbols_hw[PERF_COUNT_HW_MAX] = { |
1dc12760 JO |
59 | [PERF_COUNT_HW_CPU_CYCLES] = { |
60 | .symbol = "cpu-cycles", | |
61 | .alias = "cycles", | |
62 | }, | |
63 | [PERF_COUNT_HW_INSTRUCTIONS] = { | |
64 | .symbol = "instructions", | |
65 | .alias = "", | |
66 | }, | |
67 | [PERF_COUNT_HW_CACHE_REFERENCES] = { | |
68 | .symbol = "cache-references", | |
69 | .alias = "", | |
70 | }, | |
71 | [PERF_COUNT_HW_CACHE_MISSES] = { | |
72 | .symbol = "cache-misses", | |
73 | .alias = "", | |
74 | }, | |
75 | [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = { | |
76 | .symbol = "branch-instructions", | |
77 | .alias = "branches", | |
78 | }, | |
79 | [PERF_COUNT_HW_BRANCH_MISSES] = { | |
80 | .symbol = "branch-misses", | |
81 | .alias = "", | |
82 | }, | |
83 | [PERF_COUNT_HW_BUS_CYCLES] = { | |
84 | .symbol = "bus-cycles", | |
85 | .alias = "", | |
86 | }, | |
87 | [PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = { | |
88 | .symbol = "stalled-cycles-frontend", | |
89 | .alias = "idle-cycles-frontend", | |
90 | }, | |
91 | [PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = { | |
92 | .symbol = "stalled-cycles-backend", | |
93 | .alias = "idle-cycles-backend", | |
94 | }, | |
95 | [PERF_COUNT_HW_REF_CPU_CYCLES] = { | |
96 | .symbol = "ref-cycles", | |
97 | .alias = "", | |
98 | }, | |
99 | }; | |
100 | ||
705750f2 | 101 | struct event_symbol event_symbols_sw[PERF_COUNT_SW_MAX] = { |
1dc12760 JO |
102 | [PERF_COUNT_SW_CPU_CLOCK] = { |
103 | .symbol = "cpu-clock", | |
104 | .alias = "", | |
105 | }, | |
106 | [PERF_COUNT_SW_TASK_CLOCK] = { | |
107 | .symbol = "task-clock", | |
108 | .alias = "", | |
109 | }, | |
110 | [PERF_COUNT_SW_PAGE_FAULTS] = { | |
111 | .symbol = "page-faults", | |
112 | .alias = "faults", | |
113 | }, | |
114 | [PERF_COUNT_SW_CONTEXT_SWITCHES] = { | |
115 | .symbol = "context-switches", | |
116 | .alias = "cs", | |
117 | }, | |
118 | [PERF_COUNT_SW_CPU_MIGRATIONS] = { | |
119 | .symbol = "cpu-migrations", | |
120 | .alias = "migrations", | |
121 | }, | |
122 | [PERF_COUNT_SW_PAGE_FAULTS_MIN] = { | |
123 | .symbol = "minor-faults", | |
124 | .alias = "", | |
125 | }, | |
126 | [PERF_COUNT_SW_PAGE_FAULTS_MAJ] = { | |
127 | .symbol = "major-faults", | |
128 | .alias = "", | |
129 | }, | |
130 | [PERF_COUNT_SW_ALIGNMENT_FAULTS] = { | |
131 | .symbol = "alignment-faults", | |
132 | .alias = "", | |
133 | }, | |
134 | [PERF_COUNT_SW_EMULATION_FAULTS] = { | |
135 | .symbol = "emulation-faults", | |
136 | .alias = "", | |
137 | }, | |
d22d1a2a AH |
138 | [PERF_COUNT_SW_DUMMY] = { |
139 | .symbol = "dummy", | |
140 | .alias = "", | |
141 | }, | |
bae9cc41 ACM |
142 | [PERF_COUNT_SW_BPF_OUTPUT] = { |
143 | .symbol = "bpf-output", | |
144 | .alias = "", | |
145 | }, | |
8ad8db37 IM |
146 | }; |
147 | ||
cdd6c482 IM |
148 | #define __PERF_EVENT_FIELD(config, name) \ |
149 | ((config & PERF_EVENT_##name##_MASK) >> PERF_EVENT_##name##_SHIFT) | |
5242519b | 150 | |
1fc570ad | 151 | #define PERF_EVENT_RAW(config) __PERF_EVENT_FIELD(config, RAW) |
cdd6c482 | 152 | #define PERF_EVENT_CONFIG(config) __PERF_EVENT_FIELD(config, CONFIG) |
1fc570ad | 153 | #define PERF_EVENT_TYPE(config) __PERF_EVENT_FIELD(config, TYPE) |
cdd6c482 | 154 | #define PERF_EVENT_ID(config) __PERF_EVENT_FIELD(config, EVENT) |
5242519b | 155 | |
22a9f41b ACM |
156 | #define for_each_subsystem(sys_dir, sys_dirent) \ |
157 | while ((sys_dirent = readdir(sys_dir)) != NULL) \ | |
158 | if (sys_dirent->d_type == DT_DIR && \ | |
159 | (strcmp(sys_dirent->d_name, ".")) && \ | |
160 | (strcmp(sys_dirent->d_name, ".."))) | |
f6bdafef | 161 | |
c02cab22 | 162 | static int tp_event_has_id(const char *dir_path, struct dirent *evt_dir) |
ae07b63f PZ |
163 | { |
164 | char evt_path[MAXPATHLEN]; | |
165 | int fd; | |
166 | ||
c02cab22 | 167 | snprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, evt_dir->d_name); |
ae07b63f PZ |
168 | fd = open(evt_path, O_RDONLY); |
169 | if (fd < 0) | |
170 | return -EINVAL; | |
171 | close(fd); | |
172 | ||
173 | return 0; | |
174 | } | |
175 | ||
c02cab22 | 176 | #define for_each_event(dir_path, evt_dir, evt_dirent) \ |
22a9f41b ACM |
177 | while ((evt_dirent = readdir(evt_dir)) != NULL) \ |
178 | if (evt_dirent->d_type == DT_DIR && \ | |
179 | (strcmp(evt_dirent->d_name, ".")) && \ | |
180 | (strcmp(evt_dirent->d_name, "..")) && \ | |
c02cab22 | 181 | (!tp_event_has_id(dir_path, evt_dirent))) |
f6bdafef | 182 | |
270bbbe8 | 183 | #define MAX_EVENT_LENGTH 512 |
f6bdafef | 184 | |
448d732c IR |
185 | void parse_events__handle_error(struct parse_events_error *err, int idx, |
186 | char *str, char *help) | |
187 | { | |
188 | if (WARN(!str, "WARNING: failed to provide error string\n")) { | |
189 | free(help); | |
190 | return; | |
191 | } | |
a910e466 IR |
192 | switch (err->num_errors) { |
193 | case 0: | |
194 | err->idx = idx; | |
195 | err->str = str; | |
196 | err->help = help; | |
197 | break; | |
198 | case 1: | |
199 | err->first_idx = err->idx; | |
200 | err->idx = idx; | |
201 | err->first_str = err->str; | |
202 | err->str = str; | |
203 | err->first_help = err->help; | |
204 | err->help = help; | |
205 | break; | |
206 | default: | |
207 | WARN_ONCE(1, "WARNING: multiple event parsing errors\n"); | |
208 | free(err->str); | |
209 | err->str = str; | |
210 | free(err->help); | |
211 | err->help = help; | |
212 | break; | |
213 | } | |
214 | err->num_errors++; | |
448d732c | 215 | } |
f6bdafef | 216 | |
1ef2ed10 | 217 | struct tracepoint_path *tracepoint_id_to_path(u64 config) |
f6bdafef | 218 | { |
1ef2ed10 | 219 | struct tracepoint_path *path = NULL; |
f6bdafef | 220 | DIR *sys_dir, *evt_dir; |
22a9f41b | 221 | struct dirent *sys_dirent, *evt_dirent; |
8aa8a7c8 | 222 | char id_buf[24]; |
725b1368 | 223 | int fd; |
f6bdafef JB |
224 | u64 id; |
225 | char evt_path[MAXPATHLEN]; | |
25a7d914 | 226 | char *dir_path; |
f6bdafef | 227 | |
7014e0e3 | 228 | sys_dir = tracing_events__opendir(); |
f6bdafef | 229 | if (!sys_dir) |
725b1368 | 230 | return NULL; |
6b58e7f1 | 231 | |
22a9f41b | 232 | for_each_subsystem(sys_dir, sys_dirent) { |
25a7d914 ACM |
233 | dir_path = get_events_file(sys_dirent->d_name); |
234 | if (!dir_path) | |
235 | continue; | |
725b1368 ED |
236 | evt_dir = opendir(dir_path); |
237 | if (!evt_dir) | |
25a7d914 | 238 | goto next; |
725b1368 | 239 | |
c02cab22 | 240 | for_each_event(dir_path, evt_dir, evt_dirent) { |
725b1368 | 241 | |
77f18153 JO |
242 | scnprintf(evt_path, MAXPATHLEN, "%s/%s/id", dir_path, |
243 | evt_dirent->d_name); | |
725b1368 | 244 | fd = open(evt_path, O_RDONLY); |
f6bdafef JB |
245 | if (fd < 0) |
246 | continue; | |
247 | if (read(fd, id_buf, sizeof(id_buf)) < 0) { | |
248 | close(fd); | |
249 | continue; | |
250 | } | |
251 | close(fd); | |
252 | id = atoll(id_buf); | |
253 | if (id == config) { | |
25a7d914 | 254 | put_events_file(dir_path); |
f6bdafef JB |
255 | closedir(evt_dir); |
256 | closedir(sys_dir); | |
59b4caeb | 257 | path = zalloc(sizeof(*path)); |
5aa365f2 TS |
258 | if (!path) |
259 | return NULL; | |
7125f204 | 260 | if (asprintf(&path->system, "%.*s", MAX_EVENT_LENGTH, sys_dirent->d_name) < 0) { |
1ef2ed10 FW |
261 | free(path); |
262 | return NULL; | |
263 | } | |
7125f204 | 264 | if (asprintf(&path->name, "%.*s", MAX_EVENT_LENGTH, evt_dirent->d_name) < 0) { |
74cf249d | 265 | zfree(&path->system); |
1ef2ed10 FW |
266 | free(path); |
267 | return NULL; | |
268 | } | |
1ef2ed10 | 269 | return path; |
f6bdafef JB |
270 | } |
271 | } | |
272 | closedir(evt_dir); | |
25a7d914 ACM |
273 | next: |
274 | put_events_file(dir_path); | |
f6bdafef JB |
275 | } |
276 | ||
f6bdafef | 277 | closedir(sys_dir); |
1ef2ed10 FW |
278 | return NULL; |
279 | } | |
280 | ||
e7c93f09 NK |
281 | struct tracepoint_path *tracepoint_name_to_path(const char *name) |
282 | { | |
283 | struct tracepoint_path *path = zalloc(sizeof(*path)); | |
284 | char *str = strchr(name, ':'); | |
285 | ||
286 | if (path == NULL || str == NULL) { | |
287 | free(path); | |
288 | return NULL; | |
289 | } | |
290 | ||
291 | path->system = strndup(name, str - name); | |
292 | path->name = strdup(str+1); | |
293 | ||
294 | if (path->system == NULL || path->name == NULL) { | |
74cf249d ACM |
295 | zfree(&path->system); |
296 | zfree(&path->name); | |
506fde11 | 297 | zfree(&path); |
e7c93f09 NK |
298 | } |
299 | ||
300 | return path; | |
301 | } | |
302 | ||
1424dc96 DA |
303 | const char *event_type(int type) |
304 | { | |
305 | switch (type) { | |
306 | case PERF_TYPE_HARDWARE: | |
307 | return "hardware"; | |
308 | ||
309 | case PERF_TYPE_SOFTWARE: | |
310 | return "software"; | |
311 | ||
312 | case PERF_TYPE_TRACEPOINT: | |
313 | return "tracepoint"; | |
314 | ||
315 | case PERF_TYPE_HW_CACHE: | |
316 | return "hardware-cache"; | |
317 | ||
318 | default: | |
319 | break; | |
320 | } | |
321 | ||
322 | return "unknown"; | |
323 | } | |
324 | ||
e814fddd WN |
325 | static int parse_events__is_name_term(struct parse_events_term *term) |
326 | { | |
327 | return term->type_term == PARSE_EVENTS__TERM_TYPE_NAME; | |
328 | } | |
7ae92e74 | 329 | |
e814fddd WN |
330 | static char *get_config_name(struct list_head *head_terms) |
331 | { | |
332 | struct parse_events_term *term; | |
333 | ||
334 | if (!head_terms) | |
335 | return NULL; | |
336 | ||
337 | list_for_each_entry(term, head_terms, list) | |
338 | if (parse_events__is_name_term(term)) | |
339 | return term->val.str; | |
340 | ||
341 | return NULL; | |
342 | } | |
7ae92e74 | 343 | |
32dcd021 | 344 | static struct evsel * |
410136f5 SE |
345 | __add_event(struct list_head *list, int *idx, |
346 | struct perf_event_attr *attr, | |
66ec1191 | 347 | char *name, struct perf_pmu *pmu, |
f0fbb114 AK |
348 | struct list_head *config_terms, bool auto_merge_stats, |
349 | const char *cpu_list) | |
89812fc8 | 350 | { |
32dcd021 | 351 | struct evsel *evsel; |
f854839b | 352 | struct perf_cpu_map *cpus = pmu ? pmu->cpus : |
9c3516d1 | 353 | cpu_list ? perf_cpu_map__new(cpu_list) : NULL; |
89812fc8 JO |
354 | |
355 | event_attr_init(attr); | |
356 | ||
75fc5ae5 | 357 | evsel = perf_evsel__new_idx(attr, *idx); |
c5cd8ac0 | 358 | if (!evsel) |
410136f5 | 359 | return NULL; |
89812fc8 | 360 | |
75fc5ae5 | 361 | (*idx)++; |
d400bd3a | 362 | evsel->core.cpus = perf_cpu_map__get(cpus); |
fe1f61b3 | 363 | evsel->core.own_cpus = perf_cpu_map__get(cpus); |
648b5af3 | 364 | evsel->core.system_wide = pmu ? pmu->is_uncore : false; |
63ce8449 | 365 | evsel->auto_merge_stats = auto_merge_stats; |
f30a79b0 | 366 | |
9db1763c ACM |
367 | if (name) |
368 | evsel->name = strdup(name); | |
930a2e29 JO |
369 | |
370 | if (config_terms) | |
371 | list_splice(config_terms, &evsel->config_terms); | |
372 | ||
b27c4ece | 373 | list_add_tail(&evsel->core.node, list); |
410136f5 | 374 | return evsel; |
89812fc8 JO |
375 | } |
376 | ||
c5cd8ac0 | 377 | static int add_event(struct list_head *list, int *idx, |
930a2e29 JO |
378 | struct perf_event_attr *attr, char *name, |
379 | struct list_head *config_terms) | |
7ae92e74 | 380 | { |
f0fbb114 AK |
381 | return __add_event(list, idx, attr, name, NULL, config_terms, false, NULL) ? 0 : -ENOMEM; |
382 | } | |
383 | ||
384 | static int add_event_tool(struct list_head *list, int *idx, | |
385 | enum perf_tool_event tool_event) | |
386 | { | |
32dcd021 | 387 | struct evsel *evsel; |
f0fbb114 AK |
388 | struct perf_event_attr attr = { |
389 | .type = PERF_TYPE_SOFTWARE, | |
390 | .config = PERF_COUNT_SW_DUMMY, | |
391 | }; | |
392 | ||
393 | evsel = __add_event(list, idx, &attr, NULL, NULL, NULL, false, "0"); | |
394 | if (!evsel) | |
395 | return -ENOMEM; | |
396 | evsel->tool_event = tool_event; | |
397 | if (tool_event == PERF_TOOL_DURATION_TIME) | |
398 | evsel->unit = strdup("ns"); | |
399 | return 0; | |
7ae92e74 YZ |
400 | } |
401 | ||
0b668bc9 | 402 | static int parse_aliases(char *str, const char *names[][PERF_EVSEL__MAX_ALIASES], int size) |
8326f44d IM |
403 | { |
404 | int i, j; | |
61c45981 | 405 | int n, longest = -1; |
8326f44d IM |
406 | |
407 | for (i = 0; i < size; i++) { | |
0b668bc9 | 408 | for (j = 0; j < PERF_EVSEL__MAX_ALIASES && names[i][j]; j++) { |
61c45981 | 409 | n = strlen(names[i][j]); |
89812fc8 | 410 | if (n > longest && !strncasecmp(str, names[i][j], n)) |
61c45981 PM |
411 | longest = n; |
412 | } | |
89812fc8 | 413 | if (longest > 0) |
61c45981 | 414 | return i; |
8326f44d IM |
415 | } |
416 | ||
8953645f | 417 | return -1; |
8326f44d IM |
418 | } |
419 | ||
43d0b978 WN |
420 | typedef int config_term_func_t(struct perf_event_attr *attr, |
421 | struct parse_events_term *term, | |
422 | struct parse_events_error *err); | |
423 | static int config_term_common(struct perf_event_attr *attr, | |
424 | struct parse_events_term *term, | |
425 | struct parse_events_error *err); | |
426 | static int config_attr(struct perf_event_attr *attr, | |
427 | struct list_head *head, | |
428 | struct parse_events_error *err, | |
429 | config_term_func_t config_term); | |
430 | ||
c5cd8ac0 | 431 | int parse_events_add_cache(struct list_head *list, int *idx, |
43d0b978 | 432 | char *type, char *op_result1, char *op_result2, |
2c97b0d4 | 433 | struct parse_events_error *err, |
43d0b978 | 434 | struct list_head *head_config) |
8326f44d | 435 | { |
89812fc8 | 436 | struct perf_event_attr attr; |
43d0b978 WN |
437 | LIST_HEAD(config_terms); |
438 | char name[MAX_NAME_LEN], *config_name; | |
61c45981 | 439 | int cache_type = -1, cache_op = -1, cache_result = -1; |
89812fc8 JO |
440 | char *op_result[2] = { op_result1, op_result2 }; |
441 | int i, n; | |
8326f44d | 442 | |
8326f44d IM |
443 | /* |
444 | * No fallback - if we cannot get a clear cache type | |
445 | * then bail out: | |
446 | */ | |
0b668bc9 | 447 | cache_type = parse_aliases(type, perf_evsel__hw_cache, |
89812fc8 | 448 | PERF_COUNT_HW_CACHE_MAX); |
8326f44d | 449 | if (cache_type == -1) |
89812fc8 JO |
450 | return -EINVAL; |
451 | ||
43d0b978 | 452 | config_name = get_config_name(head_config); |
89812fc8 | 453 | n = snprintf(name, MAX_NAME_LEN, "%s", type); |
61c45981 | 454 | |
89812fc8 JO |
455 | for (i = 0; (i < 2) && (op_result[i]); i++) { |
456 | char *str = op_result[i]; | |
457 | ||
275ef387 | 458 | n += snprintf(name + n, MAX_NAME_LEN - n, "-%s", str); |
61c45981 PM |
459 | |
460 | if (cache_op == -1) { | |
0b668bc9 | 461 | cache_op = parse_aliases(str, perf_evsel__hw_cache_op, |
89812fc8 | 462 | PERF_COUNT_HW_CACHE_OP_MAX); |
61c45981 | 463 | if (cache_op >= 0) { |
0b668bc9 | 464 | if (!perf_evsel__is_cache_op_valid(cache_type, cache_op)) |
89812fc8 | 465 | return -EINVAL; |
61c45981 PM |
466 | continue; |
467 | } | |
468 | } | |
469 | ||
470 | if (cache_result == -1) { | |
0b668bc9 ACM |
471 | cache_result = parse_aliases(str, perf_evsel__hw_cache_result, |
472 | PERF_COUNT_HW_CACHE_RESULT_MAX); | |
61c45981 PM |
473 | if (cache_result >= 0) |
474 | continue; | |
475 | } | |
61c45981 | 476 | } |
8326f44d | 477 | |
8326f44d IM |
478 | /* |
479 | * Fall back to reads: | |
480 | */ | |
8953645f IM |
481 | if (cache_op == -1) |
482 | cache_op = PERF_COUNT_HW_CACHE_OP_READ; | |
8326f44d | 483 | |
8326f44d IM |
484 | /* |
485 | * Fall back to accesses: | |
486 | */ | |
487 | if (cache_result == -1) | |
488 | cache_result = PERF_COUNT_HW_CACHE_RESULT_ACCESS; | |
489 | ||
89812fc8 JO |
490 | memset(&attr, 0, sizeof(attr)); |
491 | attr.config = cache_type | (cache_op << 8) | (cache_result << 16); | |
492 | attr.type = PERF_TYPE_HW_CACHE; | |
43d0b978 WN |
493 | |
494 | if (head_config) { | |
2c97b0d4 | 495 | if (config_attr(&attr, head_config, err, |
43d0b978 WN |
496 | config_term_common)) |
497 | return -EINVAL; | |
498 | ||
499 | if (get_config_terms(head_config, &config_terms)) | |
500 | return -ENOMEM; | |
501 | } | |
502 | return add_event(list, idx, &attr, config_name ? : name, &config_terms); | |
bcd3279f FW |
503 | } |
504 | ||
272ed29a | 505 | static void tracepoint_error(struct parse_events_error *e, int err, |
8c619d6a | 506 | const char *sys, const char *name) |
19658171 | 507 | { |
4584f084 | 508 | const char *str; |
19658171 JO |
509 | char help[BUFSIZ]; |
510 | ||
ec183d22 AH |
511 | if (!e) |
512 | return; | |
513 | ||
19658171 JO |
514 | /* |
515 | * We get error directly from syscall errno ( > 0), | |
516 | * or from encoded pointer's error ( < 0). | |
517 | */ | |
518 | err = abs(err); | |
519 | ||
520 | switch (err) { | |
521 | case EACCES: | |
4584f084 | 522 | str = "can't access trace events"; |
19658171 JO |
523 | break; |
524 | case ENOENT: | |
4584f084 | 525 | str = "unknown tracepoint"; |
19658171 JO |
526 | break; |
527 | default: | |
4584f084 | 528 | str = "failed to add tracepoint"; |
19658171 JO |
529 | break; |
530 | } | |
531 | ||
532 | tracing_path__strerror_open_tp(err, help, sizeof(help), sys, name); | |
4584f084 | 533 | parse_events__handle_error(e, 0, strdup(str), strdup(help)); |
19658171 JO |
534 | } |
535 | ||
c5cd8ac0 | 536 | static int add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 537 | const char *sys_name, const char *evt_name, |
272ed29a | 538 | struct parse_events_error *err, |
e637d177 | 539 | struct list_head *head_config) |
bcd3279f | 540 | { |
32dcd021 | 541 | struct evsel *evsel; |
bcd3279f | 542 | |
ef503831 | 543 | evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++); |
19658171 | 544 | if (IS_ERR(evsel)) { |
272ed29a | 545 | tracepoint_error(err, PTR_ERR(evsel), sys_name, evt_name); |
8dd2a131 | 546 | return PTR_ERR(evsel); |
19658171 | 547 | } |
bcd3279f | 548 | |
e637d177 HK |
549 | if (head_config) { |
550 | LIST_HEAD(config_terms); | |
551 | ||
552 | if (get_config_terms(head_config, &config_terms)) | |
553 | return -ENOMEM; | |
554 | list_splice(&config_terms, &evsel->config_terms); | |
555 | } | |
556 | ||
b27c4ece | 557 | list_add_tail(&evsel->core.node, list); |
82fe1c29 | 558 | return 0; |
8326f44d IM |
559 | } |
560 | ||
c5cd8ac0 | 561 | static int add_tracepoint_multi_event(struct list_head *list, int *idx, |
8c619d6a | 562 | const char *sys_name, const char *evt_name, |
272ed29a | 563 | struct parse_events_error *err, |
e637d177 | 564 | struct list_head *head_config) |
bcd3279f | 565 | { |
25a7d914 | 566 | char *evt_path; |
bcd3279f FW |
567 | struct dirent *evt_ent; |
568 | DIR *evt_dir; | |
27bf90bf | 569 | int ret = 0, found = 0; |
bcd3279f | 570 | |
25a7d914 ACM |
571 | evt_path = get_events_file(sys_name); |
572 | if (!evt_path) { | |
573 | tracepoint_error(err, errno, sys_name, evt_name); | |
574 | return -1; | |
575 | } | |
bcd3279f | 576 | evt_dir = opendir(evt_path); |
bcd3279f | 577 | if (!evt_dir) { |
25a7d914 | 578 | put_events_file(evt_path); |
272ed29a | 579 | tracepoint_error(err, errno, sys_name, evt_name); |
89812fc8 | 580 | return -1; |
bcd3279f FW |
581 | } |
582 | ||
89812fc8 | 583 | while (!ret && (evt_ent = readdir(evt_dir))) { |
bcd3279f FW |
584 | if (!strcmp(evt_ent->d_name, ".") |
585 | || !strcmp(evt_ent->d_name, "..") | |
586 | || !strcmp(evt_ent->d_name, "enable") | |
587 | || !strcmp(evt_ent->d_name, "filter")) | |
588 | continue; | |
589 | ||
89812fc8 | 590 | if (!strglobmatch(evt_ent->d_name, evt_name)) |
fb1d2edf MH |
591 | continue; |
592 | ||
27bf90bf JO |
593 | found++; |
594 | ||
e637d177 | 595 | ret = add_tracepoint(list, idx, sys_name, evt_ent->d_name, |
272ed29a | 596 | err, head_config); |
bcd3279f FW |
597 | } |
598 | ||
27bf90bf JO |
599 | if (!found) { |
600 | tracepoint_error(err, ENOENT, sys_name, evt_name); | |
601 | ret = -1; | |
602 | } | |
603 | ||
25a7d914 | 604 | put_events_file(evt_path); |
0bd3f084 | 605 | closedir(evt_dir); |
89812fc8 | 606 | return ret; |
bcd3279f FW |
607 | } |
608 | ||
c5cd8ac0 | 609 | static int add_tracepoint_event(struct list_head *list, int *idx, |
8c619d6a | 610 | const char *sys_name, const char *evt_name, |
272ed29a | 611 | struct parse_events_error *err, |
e637d177 | 612 | struct list_head *head_config) |
f35488f9 JO |
613 | { |
614 | return strpbrk(evt_name, "*?") ? | |
e637d177 | 615 | add_tracepoint_multi_event(list, idx, sys_name, evt_name, |
272ed29a | 616 | err, head_config) : |
e637d177 | 617 | add_tracepoint(list, idx, sys_name, evt_name, |
272ed29a | 618 | err, head_config); |
f35488f9 JO |
619 | } |
620 | ||
c5cd8ac0 | 621 | static int add_tracepoint_multi_sys(struct list_head *list, int *idx, |
8c619d6a | 622 | const char *sys_name, const char *evt_name, |
272ed29a | 623 | struct parse_events_error *err, |
e637d177 | 624 | struct list_head *head_config) |
f35488f9 JO |
625 | { |
626 | struct dirent *events_ent; | |
627 | DIR *events_dir; | |
628 | int ret = 0; | |
629 | ||
7014e0e3 | 630 | events_dir = tracing_events__opendir(); |
f35488f9 | 631 | if (!events_dir) { |
272ed29a | 632 | tracepoint_error(err, errno, sys_name, evt_name); |
f35488f9 JO |
633 | return -1; |
634 | } | |
635 | ||
636 | while (!ret && (events_ent = readdir(events_dir))) { | |
637 | if (!strcmp(events_ent->d_name, ".") | |
638 | || !strcmp(events_ent->d_name, "..") | |
639 | || !strcmp(events_ent->d_name, "enable") | |
640 | || !strcmp(events_ent->d_name, "header_event") | |
641 | || !strcmp(events_ent->d_name, "header_page")) | |
642 | continue; | |
643 | ||
644 | if (!strglobmatch(events_ent->d_name, sys_name)) | |
645 | continue; | |
646 | ||
647 | ret = add_tracepoint_event(list, idx, events_ent->d_name, | |
272ed29a | 648 | evt_name, err, head_config); |
f35488f9 JO |
649 | } |
650 | ||
651 | closedir(events_dir); | |
652 | return ret; | |
653 | } | |
654 | ||
4edf30e3 | 655 | struct __add_bpf_event_param { |
5d9cdc11 | 656 | struct parse_events_state *parse_state; |
4edf30e3 | 657 | struct list_head *list; |
95088a59 | 658 | struct list_head *head_config; |
4edf30e3 WN |
659 | }; |
660 | ||
af4a0991 | 661 | static int add_bpf_event(const char *group, const char *event, int fd, struct bpf_object *obj, |
4edf30e3 WN |
662 | void *_param) |
663 | { | |
664 | LIST_HEAD(new_evsels); | |
665 | struct __add_bpf_event_param *param = _param; | |
5d9cdc11 | 666 | struct parse_events_state *parse_state = param->parse_state; |
4edf30e3 | 667 | struct list_head *list = param->list; |
32dcd021 | 668 | struct evsel *pos; |
4edf30e3 | 669 | int err; |
2620b7e3 ACM |
670 | /* |
671 | * Check if we should add the event, i.e. if it is a TP but starts with a '!', | |
672 | * then don't add the tracepoint, this will be used for something else, like | |
673 | * adding to a BPF_MAP_TYPE_PROG_ARRAY. | |
674 | * | |
675 | * See tools/perf/examples/bpf/augmented_raw_syscalls.c | |
676 | */ | |
677 | if (group[0] == '!') | |
678 | return 0; | |
4edf30e3 WN |
679 | |
680 | pr_debug("add bpf event %s:%s and attach bpf program %d\n", | |
cd102d70 | 681 | group, event, fd); |
4edf30e3 | 682 | |
5d369a75 ACM |
683 | err = parse_events_add_tracepoint(&new_evsels, &parse_state->idx, group, |
684 | event, parse_state->error, | |
95088a59 | 685 | param->head_config); |
4edf30e3 | 686 | if (err) { |
32dcd021 | 687 | struct evsel *evsel, *tmp; |
4edf30e3 WN |
688 | |
689 | pr_debug("Failed to add BPF event %s:%s\n", | |
cd102d70 | 690 | group, event); |
b27c4ece JO |
691 | list_for_each_entry_safe(evsel, tmp, &new_evsels, core.node) { |
692 | list_del_init(&evsel->core.node); | |
5eb2dd2a | 693 | evsel__delete(evsel); |
4edf30e3 WN |
694 | } |
695 | return err; | |
696 | } | |
cd102d70 | 697 | pr_debug("adding %s:%s\n", group, event); |
4edf30e3 | 698 | |
b27c4ece | 699 | list_for_each_entry(pos, &new_evsels, core.node) { |
1f45b1d4 | 700 | pr_debug("adding %s:%s to %p\n", |
cd102d70 | 701 | group, event, pos); |
1f45b1d4 | 702 | pos->bpf_fd = fd; |
af4a0991 | 703 | pos->bpf_obj = obj; |
1f45b1d4 | 704 | } |
4edf30e3 WN |
705 | list_splice(&new_evsels, list); |
706 | return 0; | |
707 | } | |
708 | ||
5d9cdc11 | 709 | int parse_events_load_bpf_obj(struct parse_events_state *parse_state, |
84c86ca1 | 710 | struct list_head *list, |
95088a59 WN |
711 | struct bpf_object *obj, |
712 | struct list_head *head_config) | |
84c86ca1 WN |
713 | { |
714 | int err; | |
715 | char errbuf[BUFSIZ]; | |
5d9cdc11 | 716 | struct __add_bpf_event_param param = {parse_state, list, head_config}; |
aa3abf30 | 717 | static bool registered_unprobe_atexit = false; |
84c86ca1 WN |
718 | |
719 | if (IS_ERR(obj) || !obj) { | |
720 | snprintf(errbuf, sizeof(errbuf), | |
721 | "Internal error: load bpf obj with NULL"); | |
722 | err = -EINVAL; | |
723 | goto errout; | |
724 | } | |
725 | ||
aa3abf30 WN |
726 | /* |
727 | * Register atexit handler before calling bpf__probe() so | |
728 | * bpf__probe() don't need to unprobe probe points its already | |
729 | * created when failure. | |
730 | */ | |
731 | if (!registered_unprobe_atexit) { | |
732 | atexit(bpf__clear); | |
733 | registered_unprobe_atexit = true; | |
734 | } | |
735 | ||
736 | err = bpf__probe(obj); | |
737 | if (err) { | |
738 | bpf__strerror_probe(obj, err, errbuf, sizeof(errbuf)); | |
739 | goto errout; | |
740 | } | |
741 | ||
1e5e3ee8 WN |
742 | err = bpf__load(obj); |
743 | if (err) { | |
744 | bpf__strerror_load(obj, err, errbuf, sizeof(errbuf)); | |
745 | goto errout; | |
746 | } | |
747 | ||
cd102d70 | 748 | err = bpf__foreach_event(obj, add_bpf_event, ¶m); |
4edf30e3 WN |
749 | if (err) { |
750 | snprintf(errbuf, sizeof(errbuf), | |
751 | "Attach events in BPF object failed"); | |
752 | goto errout; | |
753 | } | |
754 | ||
755 | return 0; | |
84c86ca1 | 756 | errout: |
5d9cdc11 ACM |
757 | parse_state->error->help = strdup("(add -v to see detail)"); |
758 | parse_state->error->str = strdup(errbuf); | |
84c86ca1 WN |
759 | return err; |
760 | } | |
761 | ||
a34f3be7 | 762 | static int |
5d9cdc11 | 763 | parse_events_config_bpf(struct parse_events_state *parse_state, |
a34f3be7 WN |
764 | struct bpf_object *obj, |
765 | struct list_head *head_config) | |
766 | { | |
767 | struct parse_events_term *term; | |
768 | int error_pos; | |
769 | ||
770 | if (!head_config || list_empty(head_config)) | |
771 | return 0; | |
772 | ||
773 | list_for_each_entry(term, head_config, list) { | |
774 | char errbuf[BUFSIZ]; | |
775 | int err; | |
776 | ||
777 | if (term->type_term != PARSE_EVENTS__TERM_TYPE_USER) { | |
778 | snprintf(errbuf, sizeof(errbuf), | |
779 | "Invalid config term for BPF object"); | |
780 | errbuf[BUFSIZ - 1] = '\0'; | |
781 | ||
5d9cdc11 ACM |
782 | parse_state->error->idx = term->err_term; |
783 | parse_state->error->str = strdup(errbuf); | |
a34f3be7 WN |
784 | return -EINVAL; |
785 | } | |
786 | ||
5d9cdc11 | 787 | err = bpf__config_obj(obj, term, parse_state->evlist, &error_pos); |
a34f3be7 | 788 | if (err) { |
5d9cdc11 | 789 | bpf__strerror_config_obj(obj, term, parse_state->evlist, |
a34f3be7 WN |
790 | &error_pos, err, errbuf, |
791 | sizeof(errbuf)); | |
5d9cdc11 | 792 | parse_state->error->help = strdup( |
7630b3e2 | 793 | "Hint:\tValid config terms:\n" |
e571e029 WN |
794 | " \tmap:[<arraymap>].value<indices>=[value]\n" |
795 | " \tmap:[<eventmap>].event<indices>=[event]\n" | |
7630b3e2 | 796 | "\n" |
e571e029 | 797 | " \twhere <indices> is something like [0,3...5] or [all]\n" |
a34f3be7 | 798 | " \t(add -v to see detail)"); |
5d9cdc11 | 799 | parse_state->error->str = strdup(errbuf); |
a34f3be7 | 800 | if (err == -BPF_LOADER_ERRNO__OBJCONF_MAP_VALUE) |
5d9cdc11 | 801 | parse_state->error->idx = term->err_val; |
a34f3be7 | 802 | else |
5d9cdc11 | 803 | parse_state->error->idx = term->err_term + error_pos; |
a34f3be7 WN |
804 | return err; |
805 | } | |
806 | } | |
807 | return 0; | |
808 | } | |
809 | ||
95088a59 WN |
810 | /* |
811 | * Split config terms: | |
812 | * perf record -e bpf.c/call-graph=fp,map:array.value[0]=1/ ... | |
813 | * 'call-graph=fp' is 'evt config', should be applied to each | |
814 | * events in bpf.c. | |
815 | * 'map:array.value[0]=1' is 'obj config', should be processed | |
816 | * with parse_events_config_bpf. | |
817 | * | |
818 | * Move object config terms from the first list to obj_head_config. | |
819 | */ | |
820 | static void | |
821 | split_bpf_config_terms(struct list_head *evt_head_config, | |
822 | struct list_head *obj_head_config) | |
823 | { | |
824 | struct parse_events_term *term, *temp; | |
825 | ||
826 | /* | |
827 | * Currectly, all possible user config term | |
828 | * belong to bpf object. parse_events__is_hardcoded_term() | |
829 | * happends to be a good flag. | |
830 | * | |
831 | * See parse_events_config_bpf() and | |
832 | * config_term_tracepoint(). | |
833 | */ | |
834 | list_for_each_entry_safe(term, temp, evt_head_config, list) | |
835 | if (!parse_events__is_hardcoded_term(term)) | |
836 | list_move_tail(&term->list, obj_head_config); | |
837 | } | |
838 | ||
5d9cdc11 | 839 | int parse_events_load_bpf(struct parse_events_state *parse_state, |
84c86ca1 | 840 | struct list_head *list, |
d509db04 | 841 | char *bpf_file_name, |
a34f3be7 WN |
842 | bool source, |
843 | struct list_head *head_config) | |
84c86ca1 | 844 | { |
a34f3be7 | 845 | int err; |
95088a59 WN |
846 | struct bpf_object *obj; |
847 | LIST_HEAD(obj_head_config); | |
848 | ||
849 | if (head_config) | |
850 | split_bpf_config_terms(head_config, &obj_head_config); | |
84c86ca1 | 851 | |
d509db04 | 852 | obj = bpf__prepare_load(bpf_file_name, source); |
6371ca3b | 853 | if (IS_ERR(obj)) { |
84c86ca1 | 854 | char errbuf[BUFSIZ]; |
84c86ca1 | 855 | |
6371ca3b | 856 | err = PTR_ERR(obj); |
84c86ca1 WN |
857 | |
858 | if (err == -ENOTSUP) | |
859 | snprintf(errbuf, sizeof(errbuf), | |
860 | "BPF support is not compiled"); | |
861 | else | |
d3e0ce39 WN |
862 | bpf__strerror_prepare_load(bpf_file_name, |
863 | source, | |
864 | -err, errbuf, | |
865 | sizeof(errbuf)); | |
84c86ca1 | 866 | |
5d9cdc11 ACM |
867 | parse_state->error->help = strdup("(add -v to see detail)"); |
868 | parse_state->error->str = strdup(errbuf); | |
84c86ca1 WN |
869 | return err; |
870 | } | |
871 | ||
5d9cdc11 | 872 | err = parse_events_load_bpf_obj(parse_state, list, obj, head_config); |
a34f3be7 WN |
873 | if (err) |
874 | return err; | |
5d9cdc11 | 875 | err = parse_events_config_bpf(parse_state, obj, &obj_head_config); |
95088a59 WN |
876 | |
877 | /* | |
878 | * Caller doesn't know anything about obj_head_config, | |
879 | * so combine them together again before returnning. | |
880 | */ | |
881 | if (head_config) | |
882 | list_splice_tail(&obj_head_config, head_config); | |
883 | return err; | |
84c86ca1 WN |
884 | } |
885 | ||
89812fc8 JO |
886 | static int |
887 | parse_breakpoint_type(const char *type, struct perf_event_attr *attr) | |
1b290d67 FW |
888 | { |
889 | int i; | |
890 | ||
891 | for (i = 0; i < 3; i++) { | |
89812fc8 | 892 | if (!type || !type[i]) |
1b290d67 FW |
893 | break; |
894 | ||
7582732f JO |
895 | #define CHECK_SET_TYPE(bit) \ |
896 | do { \ | |
897 | if (attr->bp_type & bit) \ | |
898 | return -EINVAL; \ | |
899 | else \ | |
900 | attr->bp_type |= bit; \ | |
901 | } while (0) | |
902 | ||
1b290d67 FW |
903 | switch (type[i]) { |
904 | case 'r': | |
7582732f | 905 | CHECK_SET_TYPE(HW_BREAKPOINT_R); |
1b290d67 FW |
906 | break; |
907 | case 'w': | |
7582732f | 908 | CHECK_SET_TYPE(HW_BREAKPOINT_W); |
1b290d67 FW |
909 | break; |
910 | case 'x': | |
7582732f | 911 | CHECK_SET_TYPE(HW_BREAKPOINT_X); |
1b290d67 FW |
912 | break; |
913 | default: | |
89812fc8 | 914 | return -EINVAL; |
1b290d67 FW |
915 | } |
916 | } | |
89812fc8 | 917 | |
7582732f JO |
918 | #undef CHECK_SET_TYPE |
919 | ||
1b290d67 FW |
920 | if (!attr->bp_type) /* Default */ |
921 | attr->bp_type = HW_BREAKPOINT_R | HW_BREAKPOINT_W; | |
922 | ||
89812fc8 | 923 | return 0; |
1b290d67 FW |
924 | } |
925 | ||
c5cd8ac0 | 926 | int parse_events_add_breakpoint(struct list_head *list, int *idx, |
3741eb9f | 927 | void *ptr, char *type, u64 len) |
1b290d67 | 928 | { |
89812fc8 | 929 | struct perf_event_attr attr; |
1b290d67 | 930 | |
89812fc8 | 931 | memset(&attr, 0, sizeof(attr)); |
9fafd98f | 932 | attr.bp_addr = (unsigned long) ptr; |
1b290d67 | 933 | |
89812fc8 JO |
934 | if (parse_breakpoint_type(type, &attr)) |
935 | return -EINVAL; | |
1b290d67 | 936 | |
3741eb9f JS |
937 | /* Provide some defaults if len is not specified */ |
938 | if (!len) { | |
939 | if (attr.bp_type == HW_BREAKPOINT_X) | |
940 | len = sizeof(long); | |
941 | else | |
942 | len = HW_BREAKPOINT_LEN_4; | |
943 | } | |
944 | ||
945 | attr.bp_len = len; | |
61c45981 | 946 | |
89812fc8 | 947 | attr.type = PERF_TYPE_BREAKPOINT; |
4a841d65 | 948 | attr.sample_period = 1; |
b908debd | 949 | |
930a2e29 | 950 | return add_event(list, idx, &attr, NULL, NULL); |
74d5b588 JSR |
951 | } |
952 | ||
3b0e371c JO |
953 | static int check_type_val(struct parse_events_term *term, |
954 | struct parse_events_error *err, | |
955 | int type) | |
956 | { | |
957 | if (type == term->type_val) | |
958 | return 0; | |
959 | ||
960 | if (err) { | |
448d732c IR |
961 | parse_events__handle_error(err, term->err_val, |
962 | type == PARSE_EVENTS__TERM_TYPE_NUM | |
963 | ? strdup("expected numeric value") | |
964 | : strdup("expected string value"), | |
965 | NULL); | |
3b0e371c JO |
966 | } |
967 | return -EINVAL; | |
968 | } | |
969 | ||
17cb5f84 WN |
970 | /* |
971 | * Update according to parse-events.l | |
972 | */ | |
973 | static const char *config_term_names[__PARSE_EVENTS__TERM_TYPE_NR] = { | |
974 | [PARSE_EVENTS__TERM_TYPE_USER] = "<sysfs term>", | |
975 | [PARSE_EVENTS__TERM_TYPE_CONFIG] = "config", | |
976 | [PARSE_EVENTS__TERM_TYPE_CONFIG1] = "config1", | |
977 | [PARSE_EVENTS__TERM_TYPE_CONFIG2] = "config2", | |
978 | [PARSE_EVENTS__TERM_TYPE_NAME] = "name", | |
979 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD] = "period", | |
980 | [PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ] = "freq", | |
981 | [PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE] = "branch_type", | |
982 | [PARSE_EVENTS__TERM_TYPE_TIME] = "time", | |
983 | [PARSE_EVENTS__TERM_TYPE_CALLGRAPH] = "call-graph", | |
984 | [PARSE_EVENTS__TERM_TYPE_STACKSIZE] = "stack-size", | |
985 | [PARSE_EVENTS__TERM_TYPE_NOINHERIT] = "no-inherit", | |
986 | [PARSE_EVENTS__TERM_TYPE_INHERIT] = "inherit", | |
792d48b4 | 987 | [PARSE_EVENTS__TERM_TYPE_MAX_STACK] = "max-stack", |
2fda5ada | 988 | [PARSE_EVENTS__TERM_TYPE_MAX_EVENTS] = "nr", |
626a6b78 WN |
989 | [PARSE_EVENTS__TERM_TYPE_OVERWRITE] = "overwrite", |
990 | [PARSE_EVENTS__TERM_TYPE_NOOVERWRITE] = "no-overwrite", | |
dd60fba7 | 991 | [PARSE_EVENTS__TERM_TYPE_DRV_CFG] = "driver-config", |
064b4e82 | 992 | [PARSE_EVENTS__TERM_TYPE_PERCORE] = "percore", |
1b992154 | 993 | [PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT] = "aux-output", |
eb7a52d4 | 994 | [PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE] = "aux-sample-size", |
17cb5f84 WN |
995 | }; |
996 | ||
1669e509 WN |
997 | static bool config_term_shrinked; |
998 | ||
999 | static bool | |
1000 | config_term_avail(int term_type, struct parse_events_error *err) | |
1001 | { | |
448d732c IR |
1002 | char *err_str; |
1003 | ||
1669e509 | 1004 | if (term_type < 0 || term_type >= __PARSE_EVENTS__TERM_TYPE_NR) { |
448d732c IR |
1005 | parse_events__handle_error(err, -1, |
1006 | strdup("Invalid term_type"), NULL); | |
1669e509 WN |
1007 | return false; |
1008 | } | |
1009 | if (!config_term_shrinked) | |
1010 | return true; | |
1011 | ||
1012 | switch (term_type) { | |
1013 | case PARSE_EVENTS__TERM_TYPE_CONFIG: | |
1014 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
1015 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
1016 | case PARSE_EVENTS__TERM_TYPE_NAME: | |
06835545 | 1017 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
064b4e82 | 1018 | case PARSE_EVENTS__TERM_TYPE_PERCORE: |
1669e509 WN |
1019 | return true; |
1020 | default: | |
1021 | if (!err) | |
1022 | return false; | |
1023 | ||
1024 | /* term_type is validated so indexing is safe */ | |
448d732c IR |
1025 | if (asprintf(&err_str, "'%s' is not usable in 'perf stat'", |
1026 | config_term_names[term_type]) >= 0) | |
1027 | parse_events__handle_error(err, -1, err_str, NULL); | |
1669e509 WN |
1028 | return false; |
1029 | } | |
1030 | } | |
1031 | ||
1032 | void parse_events__shrink_config_terms(void) | |
1033 | { | |
1034 | config_term_shrinked = true; | |
1035 | } | |
1036 | ||
0b8891a8 HK |
1037 | static int config_term_common(struct perf_event_attr *attr, |
1038 | struct parse_events_term *term, | |
1039 | struct parse_events_error *err) | |
8f707d84 | 1040 | { |
3b0e371c JO |
1041 | #define CHECK_TYPE_VAL(type) \ |
1042 | do { \ | |
1043 | if (check_type_val(term, err, PARSE_EVENTS__TERM_TYPE_ ## type)) \ | |
1044 | return -EINVAL; \ | |
16fa7e82 JO |
1045 | } while (0) |
1046 | ||
1047 | switch (term->type_term) { | |
8f707d84 | 1048 | case PARSE_EVENTS__TERM_TYPE_CONFIG: |
16fa7e82 | 1049 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
1050 | attr->config = term->val.num; |
1051 | break; | |
1052 | case PARSE_EVENTS__TERM_TYPE_CONFIG1: | |
16fa7e82 | 1053 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
1054 | attr->config1 = term->val.num; |
1055 | break; | |
1056 | case PARSE_EVENTS__TERM_TYPE_CONFIG2: | |
16fa7e82 | 1057 | CHECK_TYPE_VAL(NUM); |
8f707d84 JO |
1058 | attr->config2 = term->val.num; |
1059 | break; | |
1060 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: | |
16fa7e82 | 1061 | CHECK_TYPE_VAL(NUM); |
8f707d84 | 1062 | break; |
09af2a55 NK |
1063 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
1064 | CHECK_TYPE_VAL(NUM); | |
1065 | break; | |
8f707d84 | 1066 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
ac12f676 AK |
1067 | CHECK_TYPE_VAL(STR); |
1068 | if (strcmp(term->val.str, "no") && | |
448d732c IR |
1069 | parse_branch_str(term->val.str, |
1070 | &attr->branch_sample_type)) { | |
1071 | parse_events__handle_error(err, term->err_val, | |
1072 | strdup("invalid branch sample type"), | |
1073 | NULL); | |
ac12f676 AK |
1074 | return -EINVAL; |
1075 | } | |
8f707d84 | 1076 | break; |
32067712 KL |
1077 | case PARSE_EVENTS__TERM_TYPE_TIME: |
1078 | CHECK_TYPE_VAL(NUM); | |
1079 | if (term->val.num > 1) { | |
448d732c IR |
1080 | parse_events__handle_error(err, term->err_val, |
1081 | strdup("expected 0 or 1"), | |
1082 | NULL); | |
32067712 KL |
1083 | return -EINVAL; |
1084 | } | |
1085 | break; | |
d457c963 KL |
1086 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
1087 | CHECK_TYPE_VAL(STR); | |
1088 | break; | |
1089 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
1090 | CHECK_TYPE_VAL(NUM); | |
1091 | break; | |
374ce938 WN |
1092 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1093 | CHECK_TYPE_VAL(NUM); | |
1094 | break; | |
1095 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
1096 | CHECK_TYPE_VAL(NUM); | |
1097 | break; | |
626a6b78 WN |
1098 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1099 | CHECK_TYPE_VAL(NUM); | |
1100 | break; | |
1101 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1102 | CHECK_TYPE_VAL(NUM); | |
1103 | break; | |
6b5fc39b JO |
1104 | case PARSE_EVENTS__TERM_TYPE_NAME: |
1105 | CHECK_TYPE_VAL(STR); | |
1106 | break; | |
792d48b4 ACM |
1107 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
1108 | CHECK_TYPE_VAL(NUM); | |
1109 | break; | |
2fda5ada ACM |
1110 | case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: |
1111 | CHECK_TYPE_VAL(NUM); | |
1112 | break; | |
064b4e82 JY |
1113 | case PARSE_EVENTS__TERM_TYPE_PERCORE: |
1114 | CHECK_TYPE_VAL(NUM); | |
1115 | if ((unsigned int)term->val.num > 1) { | |
448d732c IR |
1116 | parse_events__handle_error(err, term->err_val, |
1117 | strdup("expected 0 or 1"), | |
1118 | NULL); | |
064b4e82 JY |
1119 | return -EINVAL; |
1120 | } | |
1121 | break; | |
1b992154 AH |
1122 | case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: |
1123 | CHECK_TYPE_VAL(NUM); | |
1124 | break; | |
eb7a52d4 AH |
1125 | case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: |
1126 | CHECK_TYPE_VAL(NUM); | |
1127 | if (term->val.num > UINT_MAX) { | |
1128 | parse_events__handle_error(err, term->err_val, | |
1129 | strdup("too big"), | |
1130 | NULL); | |
1131 | return -EINVAL; | |
1132 | } | |
1133 | break; | |
8f707d84 | 1134 | default: |
448d732c IR |
1135 | parse_events__handle_error(err, term->err_term, |
1136 | strdup("unknown term"), | |
1137 | parse_events_formats_error_string(NULL)); | |
8f707d84 JO |
1138 | return -EINVAL; |
1139 | } | |
16fa7e82 | 1140 | |
1669e509 WN |
1141 | /* |
1142 | * Check term availbility after basic checking so | |
1143 | * PARSE_EVENTS__TERM_TYPE_USER can be found and filtered. | |
1144 | * | |
1145 | * If check availbility at the entry of this function, | |
1146 | * user will see "'<sysfs term>' is not usable in 'perf stat'" | |
1147 | * if an invalid config term is provided for legacy events | |
1148 | * (for example, instructions/badterm/...), which is confusing. | |
1149 | */ | |
1150 | if (!config_term_avail(term->type_term, err)) | |
1151 | return -EINVAL; | |
8f707d84 | 1152 | return 0; |
16fa7e82 | 1153 | #undef CHECK_TYPE_VAL |
8f707d84 JO |
1154 | } |
1155 | ||
0b8891a8 HK |
1156 | static int config_term_pmu(struct perf_event_attr *attr, |
1157 | struct parse_events_term *term, | |
1158 | struct parse_events_error *err) | |
1159 | { | |
dd60fba7 MP |
1160 | if (term->type_term == PARSE_EVENTS__TERM_TYPE_USER || |
1161 | term->type_term == PARSE_EVENTS__TERM_TYPE_DRV_CFG) | |
0b8891a8 HK |
1162 | /* |
1163 | * Always succeed for sysfs terms, as we dont know | |
1164 | * at this point what type they need to have. | |
1165 | */ | |
1166 | return 0; | |
1167 | else | |
1168 | return config_term_common(attr, term, err); | |
1169 | } | |
1170 | ||
e637d177 HK |
1171 | static int config_term_tracepoint(struct perf_event_attr *attr, |
1172 | struct parse_events_term *term, | |
1173 | struct parse_events_error *err) | |
1174 | { | |
1175 | switch (term->type_term) { | |
1176 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: | |
1177 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: | |
374ce938 WN |
1178 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
1179 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
792d48b4 | 1180 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
2fda5ada | 1181 | case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: |
626a6b78 WN |
1182 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
1183 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
1b992154 | 1184 | case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: |
eb7a52d4 | 1185 | case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: |
e637d177 HK |
1186 | return config_term_common(attr, term, err); |
1187 | default: | |
1188 | if (err) { | |
448d732c IR |
1189 | parse_events__handle_error(err, term->err_term, |
1190 | strdup("unknown term"), | |
1191 | strdup("valid terms: call-graph,stack-size\n")); | |
e637d177 HK |
1192 | } |
1193 | return -EINVAL; | |
1194 | } | |
1195 | ||
1196 | return 0; | |
1197 | } | |
1198 | ||
8f707d84 | 1199 | static int config_attr(struct perf_event_attr *attr, |
3b0e371c | 1200 | struct list_head *head, |
0b8891a8 HK |
1201 | struct parse_events_error *err, |
1202 | config_term_func_t config_term) | |
8f707d84 | 1203 | { |
6cee6cd3 | 1204 | struct parse_events_term *term; |
8f707d84 JO |
1205 | |
1206 | list_for_each_entry(term, head, list) | |
3b0e371c | 1207 | if (config_term(attr, term, err)) |
8f707d84 JO |
1208 | return -EINVAL; |
1209 | ||
1210 | return 0; | |
1211 | } | |
1212 | ||
930a2e29 JO |
1213 | static int get_config_terms(struct list_head *head_config, |
1214 | struct list_head *head_terms __maybe_unused) | |
1215 | { | |
05e54e23 | 1216 | #define ADD_CONFIG_TERM(__type, __weak) \ |
930a2e29 JO |
1217 | struct perf_evsel_config_term *__t; \ |
1218 | \ | |
1219 | __t = zalloc(sizeof(*__t)); \ | |
1220 | if (!__t) \ | |
1221 | return -ENOMEM; \ | |
1222 | \ | |
1223 | INIT_LIST_HEAD(&__t->list); \ | |
1224 | __t->type = PERF_EVSEL__CONFIG_TERM_ ## __type; \ | |
05e54e23 | 1225 | __t->weak = __weak; \ |
e884602b LY |
1226 | list_add_tail(&__t->list, head_terms) |
1227 | ||
05e54e23 | 1228 | #define ADD_CONFIG_TERM_VAL(__type, __name, __val, __weak) \ |
e884602b | 1229 | do { \ |
05e54e23 | 1230 | ADD_CONFIG_TERM(__type, __weak); \ |
e884602b LY |
1231 | __t->val.__name = __val; \ |
1232 | } while (0) | |
1233 | ||
05e54e23 | 1234 | #define ADD_CONFIG_TERM_STR(__type, __val, __weak) \ |
e884602b | 1235 | do { \ |
05e54e23 | 1236 | ADD_CONFIG_TERM(__type, __weak); \ |
3220fb8d LY |
1237 | __t->val.str = strdup(__val); \ |
1238 | if (!__t->val.str) { \ | |
1239 | zfree(&__t); \ | |
1240 | return -ENOMEM; \ | |
1241 | } \ | |
1242 | __t->free_str = true; \ | |
930a2e29 JO |
1243 | } while (0) |
1244 | ||
1245 | struct parse_events_term *term; | |
1246 | ||
1247 | list_for_each_entry(term, head_config, list) { | |
1248 | switch (term->type_term) { | |
ee4c7588 | 1249 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD: |
05e54e23 | 1250 | ADD_CONFIG_TERM_VAL(PERIOD, period, term->val.num, term->weak); |
32067712 | 1251 | break; |
09af2a55 | 1252 | case PARSE_EVENTS__TERM_TYPE_SAMPLE_FREQ: |
05e54e23 | 1253 | ADD_CONFIG_TERM_VAL(FREQ, freq, term->val.num, term->weak); |
09af2a55 | 1254 | break; |
32067712 | 1255 | case PARSE_EVENTS__TERM_TYPE_TIME: |
05e54e23 | 1256 | ADD_CONFIG_TERM_VAL(TIME, time, term->val.num, term->weak); |
32067712 | 1257 | break; |
d457c963 | 1258 | case PARSE_EVENTS__TERM_TYPE_CALLGRAPH: |
05e54e23 | 1259 | ADD_CONFIG_TERM_STR(CALLGRAPH, term->val.str, term->weak); |
d457c963 | 1260 | break; |
ac12f676 | 1261 | case PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE: |
05e54e23 | 1262 | ADD_CONFIG_TERM_STR(BRANCH, term->val.str, term->weak); |
ac12f676 | 1263 | break; |
d457c963 | 1264 | case PARSE_EVENTS__TERM_TYPE_STACKSIZE: |
e884602b | 1265 | ADD_CONFIG_TERM_VAL(STACK_USER, stack_user, |
05e54e23 | 1266 | term->val.num, term->weak); |
d457c963 | 1267 | break; |
374ce938 | 1268 | case PARSE_EVENTS__TERM_TYPE_INHERIT: |
e884602b | 1269 | ADD_CONFIG_TERM_VAL(INHERIT, inherit, |
05e54e23 | 1270 | term->val.num ? 1 : 0, term->weak); |
374ce938 WN |
1271 | break; |
1272 | case PARSE_EVENTS__TERM_TYPE_NOINHERIT: | |
e884602b | 1273 | ADD_CONFIG_TERM_VAL(INHERIT, inherit, |
05e54e23 | 1274 | term->val.num ? 0 : 1, term->weak); |
374ce938 | 1275 | break; |
792d48b4 | 1276 | case PARSE_EVENTS__TERM_TYPE_MAX_STACK: |
e884602b | 1277 | ADD_CONFIG_TERM_VAL(MAX_STACK, max_stack, |
05e54e23 | 1278 | term->val.num, term->weak); |
792d48b4 | 1279 | break; |
2fda5ada | 1280 | case PARSE_EVENTS__TERM_TYPE_MAX_EVENTS: |
e884602b | 1281 | ADD_CONFIG_TERM_VAL(MAX_EVENTS, max_events, |
05e54e23 | 1282 | term->val.num, term->weak); |
2fda5ada | 1283 | break; |
626a6b78 | 1284 | case PARSE_EVENTS__TERM_TYPE_OVERWRITE: |
e884602b | 1285 | ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite, |
05e54e23 | 1286 | term->val.num ? 1 : 0, term->weak); |
626a6b78 WN |
1287 | break; |
1288 | case PARSE_EVENTS__TERM_TYPE_NOOVERWRITE: | |
e884602b | 1289 | ADD_CONFIG_TERM_VAL(OVERWRITE, overwrite, |
05e54e23 | 1290 | term->val.num ? 0 : 1, term->weak); |
626a6b78 | 1291 | break; |
dd60fba7 | 1292 | case PARSE_EVENTS__TERM_TYPE_DRV_CFG: |
05e54e23 | 1293 | ADD_CONFIG_TERM_STR(DRV_CFG, term->val.str, term->weak); |
dd60fba7 | 1294 | break; |
064b4e82 | 1295 | case PARSE_EVENTS__TERM_TYPE_PERCORE: |
e884602b | 1296 | ADD_CONFIG_TERM_VAL(PERCORE, percore, |
05e54e23 | 1297 | term->val.num ? true : false, term->weak); |
064b4e82 | 1298 | break; |
1b992154 | 1299 | case PARSE_EVENTS__TERM_TYPE_AUX_OUTPUT: |
e884602b | 1300 | ADD_CONFIG_TERM_VAL(AUX_OUTPUT, aux_output, |
05e54e23 | 1301 | term->val.num ? 1 : 0, term->weak); |
1b992154 | 1302 | break; |
eb7a52d4 | 1303 | case PARSE_EVENTS__TERM_TYPE_AUX_SAMPLE_SIZE: |
e884602b | 1304 | ADD_CONFIG_TERM_VAL(AUX_SAMPLE_SIZE, aux_sample_size, |
05e54e23 | 1305 | term->val.num, term->weak); |
eb7a52d4 | 1306 | break; |
930a2e29 JO |
1307 | default: |
1308 | break; | |
1309 | } | |
1310 | } | |
a1ac7de6 AH |
1311 | return 0; |
1312 | } | |
1313 | ||
1314 | /* | |
1315 | * Add PERF_EVSEL__CONFIG_TERM_CFG_CHG where cfg_chg will have a bit set for | |
1316 | * each bit of attr->config that the user has changed. | |
1317 | */ | |
1318 | static int get_config_chgs(struct perf_pmu *pmu, struct list_head *head_config, | |
1319 | struct list_head *head_terms) | |
1320 | { | |
1321 | struct parse_events_term *term; | |
1322 | u64 bits = 0; | |
1323 | int type; | |
1324 | ||
1325 | list_for_each_entry(term, head_config, list) { | |
1326 | switch (term->type_term) { | |
1327 | case PARSE_EVENTS__TERM_TYPE_USER: | |
1328 | type = perf_pmu__format_type(&pmu->format, term->config); | |
1329 | if (type != PERF_PMU_FORMAT_VALUE_CONFIG) | |
1330 | continue; | |
1331 | bits |= perf_pmu__format_bits(&pmu->format, term->config); | |
1332 | break; | |
1333 | case PARSE_EVENTS__TERM_TYPE_CONFIG: | |
1334 | bits = ~(u64)0; | |
1335 | break; | |
1336 | default: | |
1337 | break; | |
1338 | } | |
1339 | } | |
1340 | ||
1341 | if (bits) | |
05e54e23 | 1342 | ADD_CONFIG_TERM_VAL(CFG_CHG, cfg_chg, bits, false); |
a1ac7de6 AH |
1343 | |
1344 | #undef ADD_CONFIG_TERM | |
930a2e29 JO |
1345 | return 0; |
1346 | } | |
1347 | ||
e637d177 | 1348 | int parse_events_add_tracepoint(struct list_head *list, int *idx, |
8c619d6a | 1349 | const char *sys, const char *event, |
272ed29a | 1350 | struct parse_events_error *err, |
e637d177 HK |
1351 | struct list_head *head_config) |
1352 | { | |
1353 | if (head_config) { | |
1354 | struct perf_event_attr attr; | |
1355 | ||
272ed29a | 1356 | if (config_attr(&attr, head_config, err, |
e637d177 HK |
1357 | config_term_tracepoint)) |
1358 | return -EINVAL; | |
1359 | } | |
1360 | ||
1361 | if (strpbrk(sys, "*?")) | |
1362 | return add_tracepoint_multi_sys(list, idx, sys, event, | |
272ed29a | 1363 | err, head_config); |
e637d177 HK |
1364 | else |
1365 | return add_tracepoint_event(list, idx, sys, event, | |
272ed29a | 1366 | err, head_config); |
e637d177 HK |
1367 | } |
1368 | ||
5d9cdc11 | 1369 | int parse_events_add_numeric(struct parse_events_state *parse_state, |
87d650be | 1370 | struct list_head *list, |
b527bab5 | 1371 | u32 type, u64 config, |
8f707d84 | 1372 | struct list_head *head_config) |
8ad8db37 | 1373 | { |
89812fc8 | 1374 | struct perf_event_attr attr; |
930a2e29 | 1375 | LIST_HEAD(config_terms); |
61c45981 | 1376 | |
89812fc8 JO |
1377 | memset(&attr, 0, sizeof(attr)); |
1378 | attr.type = type; | |
1379 | attr.config = config; | |
8f707d84 | 1380 | |
930a2e29 | 1381 | if (head_config) { |
5d9cdc11 | 1382 | if (config_attr(&attr, head_config, parse_state->error, |
0b8891a8 | 1383 | config_term_common)) |
930a2e29 JO |
1384 | return -EINVAL; |
1385 | ||
1386 | if (get_config_terms(head_config, &config_terms)) | |
1387 | return -ENOMEM; | |
1388 | } | |
8f707d84 | 1389 | |
5d9cdc11 | 1390 | return add_event(list, &parse_state->idx, &attr, |
10bf358a | 1391 | get_config_name(head_config), &config_terms); |
61c45981 | 1392 | } |
8ad8db37 | 1393 | |
f0fbb114 AK |
1394 | int parse_events_add_tool(struct parse_events_state *parse_state, |
1395 | struct list_head *list, | |
1396 | enum perf_tool_event tool_event) | |
1397 | { | |
1398 | return add_event_tool(list, &parse_state->idx, tool_event); | |
1399 | } | |
1400 | ||
064b4e82 JY |
1401 | static bool config_term_percore(struct list_head *config_terms) |
1402 | { | |
1403 | struct perf_evsel_config_term *term; | |
1404 | ||
1405 | list_for_each_entry(term, config_terms, list) { | |
1406 | if (term->type == PERF_EVSEL__CONFIG_TERM_PERCORE) | |
1407 | return term->val.percore; | |
1408 | } | |
1409 | ||
1410 | return false; | |
1411 | } | |
1412 | ||
c199c11d | 1413 | int parse_events_add_pmu(struct parse_events_state *parse_state, |
36adec85 | 1414 | struct list_head *list, char *name, |
3cdc5c2c KL |
1415 | struct list_head *head_config, |
1416 | bool auto_merge_stats, | |
1417 | bool use_alias) | |
5f537a26 JO |
1418 | { |
1419 | struct perf_event_attr attr; | |
46441bdc | 1420 | struct perf_pmu_info info; |
5f537a26 | 1421 | struct perf_pmu *pmu; |
32dcd021 | 1422 | struct evsel *evsel; |
333b5665 | 1423 | struct parse_events_error *err = parse_state->error; |
3cdc5c2c | 1424 | bool use_uncore_alias; |
930a2e29 | 1425 | LIST_HEAD(config_terms); |
5f537a26 JO |
1426 | |
1427 | pmu = perf_pmu__find(name); | |
333b5665 | 1428 | if (!pmu) { |
448d732c IR |
1429 | char *err_str; |
1430 | ||
1431 | if (asprintf(&err_str, | |
333b5665 | 1432 | "Cannot find PMU `%s'. Missing kernel support?", |
448d732c | 1433 | name) >= 0) |
a910e466 | 1434 | parse_events__handle_error(err, 0, err_str, NULL); |
5f537a26 | 1435 | return -EINVAL; |
333b5665 | 1436 | } |
5f537a26 | 1437 | |
dc0a6202 AH |
1438 | if (pmu->default_config) { |
1439 | memcpy(&attr, pmu->default_config, | |
1440 | sizeof(struct perf_event_attr)); | |
1441 | } else { | |
1442 | memset(&attr, 0, sizeof(attr)); | |
1443 | } | |
5f537a26 | 1444 | |
3cdc5c2c KL |
1445 | use_uncore_alias = (pmu->is_uncore && use_alias); |
1446 | ||
ad962273 AH |
1447 | if (!head_config) { |
1448 | attr.type = pmu->type; | |
f0fbb114 AK |
1449 | evsel = __add_event(list, &parse_state->idx, &attr, NULL, pmu, NULL, |
1450 | auto_merge_stats, NULL); | |
8c5421c0 AVF |
1451 | if (evsel) { |
1452 | evsel->pmu_name = name; | |
3cdc5c2c | 1453 | evsel->use_uncore_alias = use_uncore_alias; |
8c5421c0 AVF |
1454 | return 0; |
1455 | } else { | |
1456 | return -ENOMEM; | |
1457 | } | |
ad962273 AH |
1458 | } |
1459 | ||
46441bdc | 1460 | if (perf_pmu__check_alias(pmu, head_config, &info)) |
a6146d50 ZY |
1461 | return -EINVAL; |
1462 | ||
5f537a26 JO |
1463 | /* |
1464 | * Configure hardcoded terms first, no need to check | |
1465 | * return value when called with fail == 0 ;) | |
1466 | */ | |
5d9cdc11 | 1467 | if (config_attr(&attr, head_config, parse_state->error, config_term_pmu)) |
c056ba6a | 1468 | return -EINVAL; |
5f537a26 | 1469 | |
930a2e29 JO |
1470 | if (get_config_terms(head_config, &config_terms)) |
1471 | return -ENOMEM; | |
1472 | ||
a1ac7de6 AH |
1473 | /* |
1474 | * When using default config, record which bits of attr->config were | |
1475 | * changed by the user. | |
1476 | */ | |
1477 | if (pmu->default_config && get_config_chgs(pmu, head_config, &config_terms)) | |
1478 | return -ENOMEM; | |
1479 | ||
38f2c422 IR |
1480 | if (perf_pmu__config(pmu, &attr, head_config, parse_state->error)) { |
1481 | struct perf_evsel_config_term *pos, *tmp; | |
1482 | ||
1483 | list_for_each_entry_safe(pos, tmp, &config_terms, list) { | |
1484 | list_del_init(&pos->list); | |
1485 | free(pos); | |
1486 | } | |
5f537a26 | 1487 | return -EINVAL; |
38f2c422 | 1488 | } |
5f537a26 | 1489 | |
5d9cdc11 | 1490 | evsel = __add_event(list, &parse_state->idx, &attr, |
66ec1191 | 1491 | get_config_name(head_config), pmu, |
f0fbb114 | 1492 | &config_terms, auto_merge_stats, NULL); |
410136f5 | 1493 | if (evsel) { |
46441bdc MF |
1494 | evsel->unit = info.unit; |
1495 | evsel->scale = info.scale; | |
044330c1 | 1496 | evsel->per_pkg = info.per_pkg; |
1d9e446b | 1497 | evsel->snapshot = info.snapshot; |
37932c18 | 1498 | evsel->metric_expr = info.metric_expr; |
96284814 | 1499 | evsel->metric_name = info.metric_name; |
8c5421c0 | 1500 | evsel->pmu_name = name; |
3cdc5c2c | 1501 | evsel->use_uncore_alias = use_uncore_alias; |
064b4e82 | 1502 | evsel->percore = config_term_percore(&evsel->config_terms); |
410136f5 SE |
1503 | } |
1504 | ||
1505 | return evsel ? 0 : -ENOMEM; | |
5f537a26 JO |
1506 | } |
1507 | ||
5d9cdc11 | 1508 | int parse_events_multi_pmu_add(struct parse_events_state *parse_state, |
2073ad33 AK |
1509 | char *str, struct list_head **listp) |
1510 | { | |
2073ad33 AK |
1511 | struct parse_events_term *term; |
1512 | struct list_head *list; | |
1513 | struct perf_pmu *pmu = NULL; | |
1514 | int ok = 0; | |
1515 | ||
1516 | *listp = NULL; | |
1517 | /* Add it for all PMUs that support the alias */ | |
1518 | list = malloc(sizeof(struct list_head)); | |
1519 | if (!list) | |
1520 | return -1; | |
1521 | INIT_LIST_HEAD(list); | |
1522 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1523 | struct perf_pmu_alias *alias; | |
1524 | ||
1525 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1526 | if (!strcasecmp(alias->name, str)) { | |
b6645a72 IR |
1527 | struct list_head *head; |
1528 | char *config; | |
1529 | ||
2073ad33 AK |
1530 | head = malloc(sizeof(struct list_head)); |
1531 | if (!head) | |
1532 | return -1; | |
1533 | INIT_LIST_HEAD(head); | |
b6645a72 IR |
1534 | config = strdup(str); |
1535 | if (!config) | |
1536 | return -1; | |
1537 | if (parse_events_term__num(&term, | |
1538 | PARSE_EVENTS__TERM_TYPE_USER, | |
1539 | config, 1, false, &config, | |
1540 | NULL) < 0) { | |
1541 | free(list); | |
1542 | free(config); | |
2073ad33 | 1543 | return -1; |
b6645a72 | 1544 | } |
2073ad33 AK |
1545 | list_add_tail(&term->list, head); |
1546 | ||
c199c11d | 1547 | if (!parse_events_add_pmu(parse_state, list, |
3cdc5c2c KL |
1548 | pmu->name, head, |
1549 | true, true)) { | |
b6645a72 | 1550 | pr_debug("%s -> %s/%s/\n", config, |
2073ad33 AK |
1551 | pmu->name, alias->str); |
1552 | ok++; | |
1553 | } | |
1554 | ||
1555 | parse_events_terms__delete(head); | |
1556 | } | |
1557 | } | |
1558 | } | |
b6645a72 IR |
1559 | if (!ok) { |
1560 | free(list); | |
2073ad33 | 1561 | return -1; |
b6645a72 | 1562 | } |
2073ad33 AK |
1563 | *listp = list; |
1564 | return 0; | |
1565 | } | |
1566 | ||
6a4bb04c JO |
1567 | int parse_events__modifier_group(struct list_head *list, |
1568 | char *event_mod) | |
89efb029 | 1569 | { |
6a4bb04c JO |
1570 | return parse_events__modifier_event(list, event_mod, true); |
1571 | } | |
1572 | ||
3cdc5c2c KL |
1573 | /* |
1574 | * Check if the two uncore PMUs are from the same uncore block | |
1575 | * The format of the uncore PMU name is uncore_#blockname_#pmuidx | |
1576 | */ | |
1577 | static bool is_same_uncore_block(const char *pmu_name_a, const char *pmu_name_b) | |
1578 | { | |
1579 | char *end_a, *end_b; | |
1580 | ||
1581 | end_a = strrchr(pmu_name_a, '_'); | |
1582 | end_b = strrchr(pmu_name_b, '_'); | |
1583 | ||
1584 | if (!end_a || !end_b) | |
1585 | return false; | |
1586 | ||
1587 | if ((end_a - pmu_name_a) != (end_b - pmu_name_b)) | |
1588 | return false; | |
1589 | ||
1590 | return (strncmp(pmu_name_a, pmu_name_b, end_a - pmu_name_a) == 0); | |
1591 | } | |
1592 | ||
1593 | static int | |
1594 | parse_events__set_leader_for_uncore_aliase(char *name, struct list_head *list, | |
1595 | struct parse_events_state *parse_state) | |
1596 | { | |
32dcd021 | 1597 | struct evsel *evsel, *leader; |
3cdc5c2c KL |
1598 | uintptr_t *leaders; |
1599 | bool is_leader = true; | |
1600 | int i, nr_pmu = 0, total_members, ret = 0; | |
1601 | ||
b27c4ece JO |
1602 | leader = list_first_entry(list, struct evsel, core.node); |
1603 | evsel = list_last_entry(list, struct evsel, core.node); | |
3cdc5c2c KL |
1604 | total_members = evsel->idx - leader->idx + 1; |
1605 | ||
1606 | leaders = calloc(total_members, sizeof(uintptr_t)); | |
1607 | if (WARN_ON(!leaders)) | |
1608 | return 0; | |
1609 | ||
1610 | /* | |
1611 | * Going through the whole group and doing sanity check. | |
1612 | * All members must use alias, and be from the same uncore block. | |
1613 | * Also, storing the leader events in an array. | |
1614 | */ | |
1615 | __evlist__for_each_entry(list, evsel) { | |
1616 | ||
1617 | /* Only split the uncore group which members use alias */ | |
1618 | if (!evsel->use_uncore_alias) | |
1619 | goto out; | |
1620 | ||
1621 | /* The events must be from the same uncore block */ | |
1622 | if (!is_same_uncore_block(leader->pmu_name, evsel->pmu_name)) | |
1623 | goto out; | |
1624 | ||
1625 | if (!is_leader) | |
1626 | continue; | |
1627 | /* | |
1628 | * If the event's PMU name starts to repeat, it must be a new | |
1629 | * event. That can be used to distinguish the leader from | |
1630 | * other members, even they have the same event name. | |
1631 | */ | |
1632 | if ((leader != evsel) && (leader->pmu_name == evsel->pmu_name)) { | |
1633 | is_leader = false; | |
1634 | continue; | |
1635 | } | |
1636 | /* The name is always alias name */ | |
1637 | WARN_ON(strcmp(leader->name, evsel->name)); | |
1638 | ||
1639 | /* Store the leader event for each PMU */ | |
1640 | leaders[nr_pmu++] = (uintptr_t) evsel; | |
1641 | } | |
1642 | ||
1643 | /* only one event alias */ | |
1644 | if (nr_pmu == total_members) { | |
1645 | parse_state->nr_groups--; | |
1646 | goto handled; | |
1647 | } | |
1648 | ||
1649 | /* | |
1650 | * An uncore event alias is a joint name which means the same event | |
1651 | * runs on all PMUs of a block. | |
1652 | * Perf doesn't support mixed events from different PMUs in the same | |
1653 | * group. The big group has to be split into multiple small groups | |
1654 | * which only include the events from the same PMU. | |
1655 | * | |
1656 | * Here the uncore event aliases must be from the same uncore block. | |
1657 | * The number of PMUs must be same for each alias. The number of new | |
1658 | * small groups equals to the number of PMUs. | |
1659 | * Setting the leader event for corresponding members in each group. | |
1660 | */ | |
1661 | i = 0; | |
1662 | __evlist__for_each_entry(list, evsel) { | |
1663 | if (i >= nr_pmu) | |
1664 | i = 0; | |
32dcd021 | 1665 | evsel->leader = (struct evsel *) leaders[i++]; |
3cdc5c2c KL |
1666 | } |
1667 | ||
1668 | /* The number of members and group name are same for each group */ | |
1669 | for (i = 0; i < nr_pmu; i++) { | |
32dcd021 | 1670 | evsel = (struct evsel *) leaders[i]; |
5643b1a5 | 1671 | evsel->core.nr_members = total_members / nr_pmu; |
3cdc5c2c KL |
1672 | evsel->group_name = name ? strdup(name) : NULL; |
1673 | } | |
1674 | ||
1675 | /* Take the new small groups into account */ | |
1676 | parse_state->nr_groups += nr_pmu - 1; | |
1677 | ||
1678 | handled: | |
1679 | ret = 1; | |
1680 | out: | |
1681 | free(leaders); | |
1682 | return ret; | |
1683 | } | |
1684 | ||
1685 | void parse_events__set_leader(char *name, struct list_head *list, | |
1686 | struct parse_events_state *parse_state) | |
6a4bb04c | 1687 | { |
32dcd021 | 1688 | struct evsel *leader; |
6a4bb04c | 1689 | |
854f7363 WN |
1690 | if (list_empty(list)) { |
1691 | WARN_ONCE(true, "WARNING: failed to set leader: empty list"); | |
1692 | return; | |
1693 | } | |
1694 | ||
3cdc5c2c KL |
1695 | if (parse_events__set_leader_for_uncore_aliase(name, list, parse_state)) |
1696 | return; | |
1697 | ||
63dab225 | 1698 | __perf_evlist__set_leader(list); |
b27c4ece | 1699 | leader = list_entry(list->next, struct evsel, core.node); |
6a4bb04c | 1700 | leader->group_name = name ? strdup(name) : NULL; |
89efb029 JO |
1701 | } |
1702 | ||
c5cd8ac0 | 1703 | /* list_event is assumed to point to malloc'ed memory */ |
5d7be90e JO |
1704 | void parse_events_update_lists(struct list_head *list_event, |
1705 | struct list_head *list_all) | |
1706 | { | |
1707 | /* | |
1708 | * Called for single event definition. Update the | |
89efb029 | 1709 | * 'all event' list, and reinit the 'single event' |
5d7be90e JO |
1710 | * list, for next event definition. |
1711 | */ | |
1712 | list_splice_tail(list_event, list_all); | |
b847cbdc | 1713 | free(list_event); |
5d7be90e JO |
1714 | } |
1715 | ||
f5b1135b JO |
1716 | struct event_modifier { |
1717 | int eu; | |
1718 | int ek; | |
1719 | int eh; | |
1720 | int eH; | |
1721 | int eG; | |
a1e12da4 | 1722 | int eI; |
f5b1135b | 1723 | int precise; |
7f94af7a | 1724 | int precise_max; |
f5b1135b | 1725 | int exclude_GH; |
3c176311 | 1726 | int sample_read; |
e9a7c414 | 1727 | int pinned; |
5a5dfe4b | 1728 | int weak; |
f5b1135b JO |
1729 | }; |
1730 | ||
1731 | static int get_event_modifier(struct event_modifier *mod, char *str, | |
32dcd021 | 1732 | struct evsel *evsel) |
61c45981 | 1733 | { |
1fc632ce JO |
1734 | int eu = evsel ? evsel->core.attr.exclude_user : 0; |
1735 | int ek = evsel ? evsel->core.attr.exclude_kernel : 0; | |
1736 | int eh = evsel ? evsel->core.attr.exclude_hv : 0; | |
1737 | int eH = evsel ? evsel->core.attr.exclude_host : 0; | |
1738 | int eG = evsel ? evsel->core.attr.exclude_guest : 0; | |
1739 | int eI = evsel ? evsel->core.attr.exclude_idle : 0; | |
1740 | int precise = evsel ? evsel->core.attr.precise_ip : 0; | |
7f94af7a | 1741 | int precise_max = 0; |
3c176311 | 1742 | int sample_read = 0; |
1fc632ce | 1743 | int pinned = evsel ? evsel->core.attr.pinned : 0; |
a21ca2ca | 1744 | |
f5b1135b JO |
1745 | int exclude = eu | ek | eh; |
1746 | int exclude_GH = evsel ? evsel->exclude_GH : 0; | |
5a5dfe4b | 1747 | int weak = 0; |
f5b1135b | 1748 | |
f5b1135b | 1749 | memset(mod, 0, sizeof(*mod)); |
ceb53fbf | 1750 | |
61c45981 | 1751 | while (*str) { |
ab608344 PZ |
1752 | if (*str == 'u') { |
1753 | if (!exclude) | |
1754 | exclude = eu = ek = eh = 1; | |
61c45981 | 1755 | eu = 0; |
ab608344 PZ |
1756 | } else if (*str == 'k') { |
1757 | if (!exclude) | |
1758 | exclude = eu = ek = eh = 1; | |
61c45981 | 1759 | ek = 0; |
ab608344 PZ |
1760 | } else if (*str == 'h') { |
1761 | if (!exclude) | |
1762 | exclude = eu = ek = eh = 1; | |
61c45981 | 1763 | eh = 0; |
99320cc8 JR |
1764 | } else if (*str == 'G') { |
1765 | if (!exclude_GH) | |
1766 | exclude_GH = eG = eH = 1; | |
1767 | eG = 0; | |
1768 | } else if (*str == 'H') { | |
1769 | if (!exclude_GH) | |
1770 | exclude_GH = eG = eH = 1; | |
1771 | eH = 0; | |
a1e12da4 JO |
1772 | } else if (*str == 'I') { |
1773 | eI = 1; | |
ab608344 PZ |
1774 | } else if (*str == 'p') { |
1775 | precise++; | |
1342798c DA |
1776 | /* use of precise requires exclude_guest */ |
1777 | if (!exclude_GH) | |
1778 | eG = 1; | |
7f94af7a JO |
1779 | } else if (*str == 'P') { |
1780 | precise_max = 1; | |
3c176311 JO |
1781 | } else if (*str == 'S') { |
1782 | sample_read = 1; | |
e9a7c414 ME |
1783 | } else if (*str == 'D') { |
1784 | pinned = 1; | |
5a5dfe4b AK |
1785 | } else if (*str == 'W') { |
1786 | weak = 1; | |
ab608344 | 1787 | } else |
61c45981 | 1788 | break; |
ab608344 | 1789 | |
61c45981 | 1790 | ++str; |
5242519b | 1791 | } |
ceb53fbf | 1792 | |
89812fc8 JO |
1793 | /* |
1794 | * precise ip: | |
1795 | * | |
1796 | * 0 - SAMPLE_IP can have arbitrary skid | |
1797 | * 1 - SAMPLE_IP must have constant skid | |
1798 | * 2 - SAMPLE_IP requested to have 0 skid | |
1799 | * 3 - SAMPLE_IP must have 0 skid | |
1800 | * | |
1801 | * See also PERF_RECORD_MISC_EXACT_IP | |
1802 | */ | |
1803 | if (precise > 3) | |
1804 | return -EINVAL; | |
ceb53fbf | 1805 | |
f5b1135b JO |
1806 | mod->eu = eu; |
1807 | mod->ek = ek; | |
1808 | mod->eh = eh; | |
1809 | mod->eH = eH; | |
1810 | mod->eG = eG; | |
a1e12da4 | 1811 | mod->eI = eI; |
f5b1135b | 1812 | mod->precise = precise; |
7f94af7a | 1813 | mod->precise_max = precise_max; |
f5b1135b | 1814 | mod->exclude_GH = exclude_GH; |
3c176311 | 1815 | mod->sample_read = sample_read; |
e9a7c414 | 1816 | mod->pinned = pinned; |
5a5dfe4b | 1817 | mod->weak = weak; |
e9a7c414 | 1818 | |
f5b1135b JO |
1819 | return 0; |
1820 | } | |
1821 | ||
534123f4 JO |
1822 | /* |
1823 | * Basic modifier sanity check to validate it contains only one | |
1824 | * instance of any modifier (apart from 'p') present. | |
1825 | */ | |
1826 | static int check_modifier(char *str) | |
1827 | { | |
1828 | char *p = str; | |
1829 | ||
1830 | /* The sizeof includes 0 byte as well. */ | |
5a5dfe4b | 1831 | if (strlen(str) > (sizeof("ukhGHpppPSDIW") - 1)) |
534123f4 JO |
1832 | return -1; |
1833 | ||
1834 | while (*p) { | |
1835 | if (*p != 'p' && strchr(p + 1, *p)) | |
1836 | return -1; | |
1837 | p++; | |
1838 | } | |
1839 | ||
1840 | return 0; | |
1841 | } | |
1842 | ||
f5b1135b JO |
1843 | int parse_events__modifier_event(struct list_head *list, char *str, bool add) |
1844 | { | |
32dcd021 | 1845 | struct evsel *evsel; |
f5b1135b JO |
1846 | struct event_modifier mod; |
1847 | ||
1848 | if (str == NULL) | |
1849 | return 0; | |
1850 | ||
534123f4 JO |
1851 | if (check_modifier(str)) |
1852 | return -EINVAL; | |
1853 | ||
f5b1135b JO |
1854 | if (!add && get_event_modifier(&mod, str, NULL)) |
1855 | return -EINVAL; | |
1856 | ||
e5cadb93 | 1857 | __evlist__for_each_entry(list, evsel) { |
f5b1135b JO |
1858 | if (add && get_event_modifier(&mod, str, evsel)) |
1859 | return -EINVAL; | |
1860 | ||
1fc632ce JO |
1861 | evsel->core.attr.exclude_user = mod.eu; |
1862 | evsel->core.attr.exclude_kernel = mod.ek; | |
1863 | evsel->core.attr.exclude_hv = mod.eh; | |
1864 | evsel->core.attr.precise_ip = mod.precise; | |
1865 | evsel->core.attr.exclude_host = mod.eH; | |
1866 | evsel->core.attr.exclude_guest = mod.eG; | |
1867 | evsel->core.attr.exclude_idle = mod.eI; | |
f5b1135b | 1868 | evsel->exclude_GH = mod.exclude_GH; |
3c176311 | 1869 | evsel->sample_read = mod.sample_read; |
7f94af7a | 1870 | evsel->precise_max = mod.precise_max; |
5a5dfe4b | 1871 | evsel->weak_group = mod.weak; |
e9a7c414 ME |
1872 | |
1873 | if (perf_evsel__is_group_leader(evsel)) | |
1fc632ce | 1874 | evsel->core.attr.pinned = mod.pinned; |
89812fc8 | 1875 | } |
ceb53fbf | 1876 | |
61c45981 PM |
1877 | return 0; |
1878 | } | |
8ad8db37 | 1879 | |
ac2ba9f3 RR |
1880 | int parse_events_name(struct list_head *list, char *name) |
1881 | { | |
32dcd021 | 1882 | struct evsel *evsel; |
ac2ba9f3 | 1883 | |
e5cadb93 | 1884 | __evlist__for_each_entry(list, evsel) { |
ac2ba9f3 RR |
1885 | if (!evsel->name) |
1886 | evsel->name = strdup(name); | |
1887 | } | |
1888 | ||
1889 | return 0; | |
1890 | } | |
1891 | ||
dcb4e102 KL |
1892 | static int |
1893 | comp_pmu(const void *p1, const void *p2) | |
1894 | { | |
1895 | struct perf_pmu_event_symbol *pmu1 = (struct perf_pmu_event_symbol *) p1; | |
1896 | struct perf_pmu_event_symbol *pmu2 = (struct perf_pmu_event_symbol *) p2; | |
1897 | ||
e312bcf1 | 1898 | return strcasecmp(pmu1->symbol, pmu2->symbol); |
dcb4e102 KL |
1899 | } |
1900 | ||
1901 | static void perf_pmu__parse_cleanup(void) | |
1902 | { | |
1903 | if (perf_pmu_events_list_num > 0) { | |
1904 | struct perf_pmu_event_symbol *p; | |
1905 | int i; | |
1906 | ||
1907 | for (i = 0; i < perf_pmu_events_list_num; i++) { | |
1908 | p = perf_pmu_events_list + i; | |
360e071b | 1909 | zfree(&p->symbol); |
dcb4e102 | 1910 | } |
506fde11 | 1911 | zfree(&perf_pmu_events_list); |
dcb4e102 KL |
1912 | perf_pmu_events_list_num = 0; |
1913 | } | |
1914 | } | |
1915 | ||
1916 | #define SET_SYMBOL(str, stype) \ | |
1917 | do { \ | |
1918 | p->symbol = str; \ | |
1919 | if (!p->symbol) \ | |
1920 | goto err; \ | |
1921 | p->type = stype; \ | |
1922 | } while (0) | |
1923 | ||
1924 | /* | |
1925 | * Read the pmu events list from sysfs | |
1926 | * Save it into perf_pmu_events_list | |
1927 | */ | |
1928 | static void perf_pmu__parse_init(void) | |
1929 | { | |
1930 | ||
1931 | struct perf_pmu *pmu = NULL; | |
1932 | struct perf_pmu_alias *alias; | |
1933 | int len = 0; | |
1934 | ||
231bb2aa AK |
1935 | pmu = NULL; |
1936 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1937 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1938 | if (strchr(alias->name, '-')) | |
1939 | len++; | |
1940 | len++; | |
1941 | } | |
1942 | } | |
1943 | ||
1944 | if (len == 0) { | |
dcb4e102 KL |
1945 | perf_pmu_events_list_num = -1; |
1946 | return; | |
1947 | } | |
dcb4e102 KL |
1948 | perf_pmu_events_list = malloc(sizeof(struct perf_pmu_event_symbol) * len); |
1949 | if (!perf_pmu_events_list) | |
1950 | return; | |
1951 | perf_pmu_events_list_num = len; | |
1952 | ||
1953 | len = 0; | |
231bb2aa AK |
1954 | pmu = NULL; |
1955 | while ((pmu = perf_pmu__scan(pmu)) != NULL) { | |
1956 | list_for_each_entry(alias, &pmu->aliases, list) { | |
1957 | struct perf_pmu_event_symbol *p = perf_pmu_events_list + len; | |
1958 | char *tmp = strchr(alias->name, '-'); | |
1959 | ||
1960 | if (tmp != NULL) { | |
1961 | SET_SYMBOL(strndup(alias->name, tmp - alias->name), | |
1962 | PMU_EVENT_SYMBOL_PREFIX); | |
1963 | p++; | |
1964 | SET_SYMBOL(strdup(++tmp), PMU_EVENT_SYMBOL_SUFFIX); | |
1965 | len += 2; | |
1966 | } else { | |
1967 | SET_SYMBOL(strdup(alias->name), PMU_EVENT_SYMBOL); | |
1968 | len++; | |
1969 | } | |
dcb4e102 KL |
1970 | } |
1971 | } | |
1972 | qsort(perf_pmu_events_list, len, | |
1973 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
1974 | ||
1975 | return; | |
1976 | err: | |
1977 | perf_pmu__parse_cleanup(); | |
1978 | } | |
1979 | ||
1980 | enum perf_pmu_event_symbol_type | |
1981 | perf_pmu__parse_check(const char *name) | |
1982 | { | |
1983 | struct perf_pmu_event_symbol p, *r; | |
1984 | ||
1985 | /* scan kernel pmu events from sysfs if needed */ | |
1986 | if (perf_pmu_events_list_num == 0) | |
1987 | perf_pmu__parse_init(); | |
1988 | /* | |
1989 | * name "cpu" could be prefix of cpu-cycles or cpu// events. | |
1990 | * cpu-cycles has been handled by hardcode. | |
1991 | * So it must be cpu// events, not kernel pmu event. | |
1992 | */ | |
1993 | if ((perf_pmu_events_list_num <= 0) || !strcmp(name, "cpu")) | |
1994 | return PMU_EVENT_SYMBOL_ERR; | |
1995 | ||
1996 | p.symbol = strdup(name); | |
1997 | r = bsearch(&p, perf_pmu_events_list, | |
1998 | (size_t) perf_pmu_events_list_num, | |
1999 | sizeof(struct perf_pmu_event_symbol), comp_pmu); | |
360e071b | 2000 | zfree(&p.symbol); |
dcb4e102 KL |
2001 | return r ? r->type : PMU_EVENT_SYMBOL_ERR; |
2002 | } | |
2003 | ||
5d9cdc11 | 2004 | static int parse_events__scanner(const char *str, void *parse_state, int start_token) |
61c45981 | 2005 | { |
89812fc8 | 2006 | YY_BUFFER_STATE buffer; |
ac20de6f | 2007 | void *scanner; |
46010ab2 | 2008 | int ret; |
bcd3279f | 2009 | |
90e2b22d | 2010 | ret = parse_events_lex_init_extra(start_token, &scanner); |
ac20de6f ZY |
2011 | if (ret) |
2012 | return ret; | |
2013 | ||
2014 | buffer = parse_events__scan_string(str, scanner); | |
a21ca2ca | 2015 | |
82ba1f2f JO |
2016 | #ifdef PARSER_DEBUG |
2017 | parse_events_debug = 1; | |
2018 | #endif | |
5d9cdc11 | 2019 | ret = parse_events_parse(parse_state, scanner); |
ac20de6f ZY |
2020 | |
2021 | parse_events__flush_buffer(buffer, scanner); | |
2022 | parse_events__delete_buffer(buffer, scanner); | |
2023 | parse_events_lex_destroy(scanner); | |
2024 | return ret; | |
2025 | } | |
bcd3279f | 2026 | |
90e2b22d JO |
2027 | /* |
2028 | * parse event config string, return a list of event terms. | |
2029 | */ | |
2030 | int parse_events_terms(struct list_head *terms, const char *str) | |
2031 | { | |
5d9cdc11 | 2032 | struct parse_events_state parse_state = { |
90e2b22d JO |
2033 | .terms = NULL, |
2034 | }; | |
2035 | int ret; | |
2036 | ||
5d9cdc11 | 2037 | ret = parse_events__scanner(str, &parse_state, PE_START_TERMS); |
90e2b22d | 2038 | if (!ret) { |
5d9cdc11 ACM |
2039 | list_splice(parse_state.terms, terms); |
2040 | zfree(&parse_state.terms); | |
90e2b22d JO |
2041 | return 0; |
2042 | } | |
2043 | ||
5d9cdc11 | 2044 | parse_events_terms__delete(parse_state.terms); |
90e2b22d JO |
2045 | return ret; |
2046 | } | |
2047 | ||
63503dba | 2048 | int parse_events(struct evlist *evlist, const char *str, |
b39b8393 | 2049 | struct parse_events_error *err) |
ac20de6f | 2050 | { |
5d9cdc11 ACM |
2051 | struct parse_events_state parse_state = { |
2052 | .list = LIST_HEAD_INIT(parse_state.list), | |
6484d2f9 | 2053 | .idx = evlist->core.nr_entries, |
7630b3e2 WN |
2054 | .error = err, |
2055 | .evlist = evlist, | |
ac20de6f ZY |
2056 | }; |
2057 | int ret; | |
bcd3279f | 2058 | |
5d9cdc11 | 2059 | ret = parse_events__scanner(str, &parse_state, PE_START_EVENTS); |
dcb4e102 | 2060 | perf_pmu__parse_cleanup(); |
8e8714c3 IR |
2061 | |
2062 | if (!ret && list_empty(&parse_state.list)) { | |
2063 | WARN_ONCE(true, "WARNING: event parser found nothing\n"); | |
2064 | return -1; | |
2065 | } | |
2066 | ||
2067 | /* | |
2068 | * Add list to the evlist even with errors to allow callers to clean up. | |
2069 | */ | |
2070 | perf_evlist__splice_list_tail(evlist, &parse_state.list); | |
2071 | ||
89812fc8 | 2072 | if (!ret) { |
32dcd021 | 2073 | struct evsel *last; |
15bfd2cc | 2074 | |
5d9cdc11 | 2075 | evlist->nr_groups += parse_state.nr_groups; |
515dbe48 | 2076 | last = evlist__last(evlist); |
15bfd2cc WN |
2077 | last->cmdline_group_boundary = true; |
2078 | ||
89812fc8 JO |
2079 | return 0; |
2080 | } | |
bcd3279f | 2081 | |
5d7be90e JO |
2082 | /* |
2083 | * There are 2 users - builtin-record and builtin-test objects. | |
c12995a5 | 2084 | * Both call evlist__delete in case of error, so we dont |
5d7be90e JO |
2085 | * need to bother. |
2086 | */ | |
bcd3279f | 2087 | return ret; |
8ad8db37 IM |
2088 | } |
2089 | ||
b39b8393 JO |
2090 | #define MAX_WIDTH 1000 |
2091 | static int get_term_width(void) | |
2092 | { | |
2093 | struct winsize ws; | |
2094 | ||
2095 | get_term_dimensions(&ws); | |
2096 | return ws.ws_col > MAX_WIDTH ? MAX_WIDTH : ws.ws_col; | |
2097 | } | |
2098 | ||
a910e466 IR |
2099 | static void __parse_events_print_error(int err_idx, const char *err_str, |
2100 | const char *err_help, const char *event) | |
b39b8393 JO |
2101 | { |
2102 | const char *str = "invalid or unsupported event: "; | |
2103 | char _buf[MAX_WIDTH]; | |
2104 | char *buf = (char *) event; | |
2105 | int idx = 0; | |
a910e466 | 2106 | if (err_str) { |
b39b8393 JO |
2107 | /* -2 for extra '' in the final fprintf */ |
2108 | int width = get_term_width() - 2; | |
2109 | int len_event = strlen(event); | |
2110 | int len_str, max_len, cut = 0; | |
2111 | ||
2112 | /* | |
2113 | * Maximum error index indent, we will cut | |
2114 | * the event string if it's bigger. | |
2115 | */ | |
141b2d31 | 2116 | int max_err_idx = 13; |
b39b8393 JO |
2117 | |
2118 | /* | |
2119 | * Let's be specific with the message when | |
2120 | * we have the precise error. | |
2121 | */ | |
2122 | str = "event syntax error: "; | |
2123 | len_str = strlen(str); | |
2124 | max_len = width - len_str; | |
2125 | ||
2126 | buf = _buf; | |
2127 | ||
bd1a0be5 | 2128 | /* We're cutting from the beginning. */ |
a910e466 IR |
2129 | if (err_idx > max_err_idx) |
2130 | cut = err_idx - max_err_idx; | |
b39b8393 JO |
2131 | |
2132 | strncpy(buf, event + cut, max_len); | |
2133 | ||
2134 | /* Mark cut parts with '..' on both sides. */ | |
2135 | if (cut) | |
2136 | buf[0] = buf[1] = '.'; | |
2137 | ||
2138 | if ((len_event - cut) > max_len) { | |
2139 | buf[max_len - 1] = buf[max_len - 2] = '.'; | |
2140 | buf[max_len] = 0; | |
2141 | } | |
2142 | ||
a910e466 | 2143 | idx = len_str + err_idx - cut; |
b39b8393 JO |
2144 | } |
2145 | ||
2146 | fprintf(stderr, "%s'%s'\n", str, buf); | |
2147 | if (idx) { | |
a910e466 IR |
2148 | fprintf(stderr, "%*s\\___ %s\n", idx + 1, "", err_str); |
2149 | if (err_help) | |
2150 | fprintf(stderr, "\n%s\n", err_help); | |
2151 | } | |
2152 | } | |
2153 | ||
2154 | void parse_events_print_error(struct parse_events_error *err, | |
2155 | const char *event) | |
2156 | { | |
2157 | if (!err->num_errors) | |
2158 | return; | |
2159 | ||
2160 | __parse_events_print_error(err->idx, err->str, err->help, event); | |
2161 | zfree(&err->str); | |
2162 | zfree(&err->help); | |
2163 | ||
2164 | if (err->num_errors > 1) { | |
2165 | fputs("\nInitial error:\n", stderr); | |
2166 | __parse_events_print_error(err->first_idx, err->first_str, | |
2167 | err->first_help, event); | |
2168 | zfree(&err->first_str); | |
2169 | zfree(&err->first_help); | |
b39b8393 | 2170 | } |
b39b8393 JO |
2171 | } |
2172 | ||
2173 | #undef MAX_WIDTH | |
2174 | ||
f120f9d5 | 2175 | int parse_events_option(const struct option *opt, const char *str, |
1d037ca1 | 2176 | int unset __maybe_unused) |
f120f9d5 | 2177 | { |
63503dba | 2178 | struct evlist *evlist = *(struct evlist **)opt->value; |
a910e466 IR |
2179 | struct parse_events_error err; |
2180 | int ret; | |
2181 | ||
2182 | bzero(&err, sizeof(err)); | |
2183 | ret = parse_events(evlist, str, &err); | |
b39b8393 | 2184 | |
333b5665 | 2185 | if (ret) { |
b39b8393 | 2186 | parse_events_print_error(&err, str); |
333b5665 AK |
2187 | fprintf(stderr, "Run 'perf list' for a list of valid events\n"); |
2188 | } | |
9175ce1f | 2189 | |
9175ce1f | 2190 | return ret; |
f120f9d5 JO |
2191 | } |
2192 | ||
4ba1faa1 | 2193 | static int |
63503dba | 2194 | foreach_evsel_in_last_glob(struct evlist *evlist, |
32dcd021 | 2195 | int (*func)(struct evsel *evsel, |
4ba1faa1 WN |
2196 | const void *arg), |
2197 | const void *arg) | |
c171b552 | 2198 | { |
32dcd021 | 2199 | struct evsel *last = NULL; |
4ba1faa1 | 2200 | int err; |
c171b552 | 2201 | |
854f7363 WN |
2202 | /* |
2203 | * Don't return when list_empty, give func a chance to report | |
2204 | * error when it found last == NULL. | |
2205 | * | |
2206 | * So no need to WARN here, let *func do this. | |
2207 | */ | |
6484d2f9 | 2208 | if (evlist->core.nr_entries > 0) |
515dbe48 | 2209 | last = evlist__last(evlist); |
69aad6f1 | 2210 | |
15bfd2cc | 2211 | do { |
4ba1faa1 WN |
2212 | err = (*func)(last, arg); |
2213 | if (err) | |
15bfd2cc | 2214 | return -1; |
4ba1faa1 WN |
2215 | if (!last) |
2216 | return 0; | |
15bfd2cc | 2217 | |
ce9036a6 | 2218 | if (last->core.node.prev == &evlist->core.entries) |
15bfd2cc | 2219 | return 0; |
b27c4ece | 2220 | last = list_entry(last->core.node.prev, struct evsel, core.node); |
15bfd2cc | 2221 | } while (!last->cmdline_group_boundary); |
c171b552 LZ |
2222 | |
2223 | return 0; | |
2224 | } | |
2225 | ||
32dcd021 | 2226 | static int set_filter(struct evsel *evsel, const void *arg) |
4ba1faa1 WN |
2227 | { |
2228 | const char *str = arg; | |
1e857484 MP |
2229 | bool found = false; |
2230 | int nr_addr_filters = 0; | |
2231 | struct perf_pmu *pmu = NULL; | |
4ba1faa1 | 2232 | |
49836f78 JH |
2233 | if (evsel == NULL) { |
2234 | fprintf(stderr, | |
2235 | "--filter option should follow a -e tracepoint or HW tracer option\n"); | |
2236 | return -1; | |
2237 | } | |
1e857484 | 2238 | |
1fc632ce | 2239 | if (evsel->core.attr.type == PERF_TYPE_TRACEPOINT) { |
1e857484 MP |
2240 | if (perf_evsel__append_tp_filter(evsel, str) < 0) { |
2241 | fprintf(stderr, | |
2242 | "not enough memory to hold filter string\n"); | |
2243 | return -1; | |
2244 | } | |
2245 | ||
2246 | return 0; | |
4ba1faa1 WN |
2247 | } |
2248 | ||
1e857484 | 2249 | while ((pmu = perf_pmu__scan(pmu)) != NULL) |
1fc632ce | 2250 | if (pmu->type == evsel->core.attr.type) { |
1e857484 MP |
2251 | found = true; |
2252 | break; | |
2253 | } | |
2254 | ||
2255 | if (found) | |
2256 | perf_pmu__scan_file(pmu, "nr_addr_filters", | |
2257 | "%d", &nr_addr_filters); | |
2258 | ||
49836f78 JH |
2259 | if (!nr_addr_filters) { |
2260 | fprintf(stderr, | |
2261 | "This CPU does not support address filtering\n"); | |
2262 | return -1; | |
2263 | } | |
1e857484 MP |
2264 | |
2265 | if (perf_evsel__append_addr_filter(evsel, str) < 0) { | |
4ba1faa1 WN |
2266 | fprintf(stderr, |
2267 | "not enough memory to hold filter string\n"); | |
2268 | return -1; | |
2269 | } | |
2270 | ||
2271 | return 0; | |
2272 | } | |
2273 | ||
2274 | int parse_filter(const struct option *opt, const char *str, | |
2275 | int unset __maybe_unused) | |
2276 | { | |
63503dba | 2277 | struct evlist *evlist = *(struct evlist **)opt->value; |
4ba1faa1 WN |
2278 | |
2279 | return foreach_evsel_in_last_glob(evlist, set_filter, | |
2280 | (const void *)str); | |
2281 | } | |
2282 | ||
32dcd021 | 2283 | static int add_exclude_perf_filter(struct evsel *evsel, |
4ba1faa1 WN |
2284 | const void *arg __maybe_unused) |
2285 | { | |
2286 | char new_filter[64]; | |
2287 | ||
1fc632ce | 2288 | if (evsel == NULL || evsel->core.attr.type != PERF_TYPE_TRACEPOINT) { |
4ba1faa1 WN |
2289 | fprintf(stderr, |
2290 | "--exclude-perf option should follow a -e tracepoint option\n"); | |
2291 | return -1; | |
2292 | } | |
2293 | ||
2294 | snprintf(new_filter, sizeof(new_filter), "common_pid != %d", getpid()); | |
2295 | ||
3541c034 | 2296 | if (perf_evsel__append_tp_filter(evsel, new_filter) < 0) { |
4ba1faa1 WN |
2297 | fprintf(stderr, |
2298 | "not enough memory to hold filter string\n"); | |
2299 | return -1; | |
2300 | } | |
2301 | ||
2302 | return 0; | |
2303 | } | |
2304 | ||
2305 | int exclude_perf(const struct option *opt, | |
2306 | const char *arg __maybe_unused, | |
2307 | int unset __maybe_unused) | |
2308 | { | |
63503dba | 2309 | struct evlist *evlist = *(struct evlist **)opt->value; |
4ba1faa1 WN |
2310 | |
2311 | return foreach_evsel_in_last_glob(evlist, add_exclude_perf_filter, | |
2312 | NULL); | |
2313 | } | |
2314 | ||
86847b62 | 2315 | static const char * const event_type_descriptors[] = { |
86847b62 TG |
2316 | "Hardware event", |
2317 | "Software event", | |
2318 | "Tracepoint event", | |
2319 | "Hardware cache event", | |
41bdcb23 LW |
2320 | "Raw hardware event descriptor", |
2321 | "Hardware breakpoint", | |
86847b62 TG |
2322 | }; |
2323 | ||
ab0e4800 YS |
2324 | static int cmp_string(const void *a, const void *b) |
2325 | { | |
2326 | const char * const *as = a; | |
2327 | const char * const *bs = b; | |
2328 | ||
2329 | return strcmp(*as, *bs); | |
2330 | } | |
2331 | ||
f6bdafef JB |
2332 | /* |
2333 | * Print the events from <debugfs_mount_point>/tracing/events | |
2334 | */ | |
2335 | ||
a3277d2d FW |
2336 | void print_tracepoint_events(const char *subsys_glob, const char *event_glob, |
2337 | bool name_only) | |
f6bdafef JB |
2338 | { |
2339 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 2340 | struct dirent *sys_dirent, *evt_dirent; |
f6bdafef | 2341 | char evt_path[MAXPATHLEN]; |
25a7d914 | 2342 | char *dir_path; |
ab0e4800 YS |
2343 | char **evt_list = NULL; |
2344 | unsigned int evt_i = 0, evt_num = 0; | |
2345 | bool evt_num_known = false; | |
f6bdafef | 2346 | |
ab0e4800 | 2347 | restart: |
7014e0e3 | 2348 | sys_dir = tracing_events__opendir(); |
f6bdafef | 2349 | if (!sys_dir) |
725b1368 | 2350 | return; |
6b58e7f1 | 2351 | |
ab0e4800 YS |
2352 | if (evt_num_known) { |
2353 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2354 | if (!evt_list) | |
2355 | goto out_close_sys_dir; | |
2356 | } | |
2357 | ||
22a9f41b | 2358 | for_each_subsystem(sys_dir, sys_dirent) { |
48000a1a | 2359 | if (subsys_glob != NULL && |
22a9f41b | 2360 | !strglobmatch(sys_dirent->d_name, subsys_glob)) |
668b8788 | 2361 | continue; |
725b1368 | 2362 | |
25a7d914 ACM |
2363 | dir_path = get_events_file(sys_dirent->d_name); |
2364 | if (!dir_path) | |
2365 | continue; | |
725b1368 ED |
2366 | evt_dir = opendir(dir_path); |
2367 | if (!evt_dir) | |
25a7d914 | 2368 | goto next; |
725b1368 | 2369 | |
c02cab22 | 2370 | for_each_event(dir_path, evt_dir, evt_dirent) { |
48000a1a | 2371 | if (event_glob != NULL && |
22a9f41b | 2372 | !strglobmatch(evt_dirent->d_name, event_glob)) |
668b8788 ACM |
2373 | continue; |
2374 | ||
ab0e4800 YS |
2375 | if (!evt_num_known) { |
2376 | evt_num++; | |
a3277d2d FW |
2377 | continue; |
2378 | } | |
2379 | ||
f6bdafef | 2380 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 2381 | sys_dirent->d_name, evt_dirent->d_name); |
ab0e4800 YS |
2382 | |
2383 | evt_list[evt_i] = strdup(evt_path); | |
25a7d914 ACM |
2384 | if (evt_list[evt_i] == NULL) { |
2385 | put_events_file(dir_path); | |
ab0e4800 | 2386 | goto out_close_evt_dir; |
25a7d914 | 2387 | } |
ab0e4800 | 2388 | evt_i++; |
f6bdafef JB |
2389 | } |
2390 | closedir(evt_dir); | |
25a7d914 ACM |
2391 | next: |
2392 | put_events_file(dir_path); | |
f6bdafef | 2393 | } |
f6bdafef | 2394 | closedir(sys_dir); |
ab0e4800 YS |
2395 | |
2396 | if (!evt_num_known) { | |
2397 | evt_num_known = true; | |
2398 | goto restart; | |
2399 | } | |
2400 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2401 | evt_i = 0; | |
2402 | while (evt_i < evt_num) { | |
2403 | if (name_only) { | |
2404 | printf("%s ", evt_list[evt_i++]); | |
2405 | continue; | |
2406 | } | |
2407 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
2408 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
2409 | } | |
dfc431cb | 2410 | if (evt_num && pager_in_use()) |
ab0e4800 YS |
2411 | printf("\n"); |
2412 | ||
2413 | out_free: | |
2414 | evt_num = evt_i; | |
2415 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2416 | zfree(&evt_list[evt_i]); | |
2417 | zfree(&evt_list); | |
2418 | return; | |
2419 | ||
2420 | out_close_evt_dir: | |
2421 | closedir(evt_dir); | |
2422 | out_close_sys_dir: | |
2423 | closedir(sys_dir); | |
2424 | ||
2425 | printf("FATAL: not enough memory to print %s\n", | |
2426 | event_type_descriptors[PERF_TYPE_TRACEPOINT]); | |
2427 | if (evt_list) | |
2428 | goto out_free; | |
f6bdafef JB |
2429 | } |
2430 | ||
20c457b8 TR |
2431 | /* |
2432 | * Check whether event is in <debugfs_mount_point>/tracing/events | |
2433 | */ | |
2434 | ||
2435 | int is_valid_tracepoint(const char *event_string) | |
2436 | { | |
2437 | DIR *sys_dir, *evt_dir; | |
22a9f41b | 2438 | struct dirent *sys_dirent, *evt_dirent; |
20c457b8 | 2439 | char evt_path[MAXPATHLEN]; |
25a7d914 | 2440 | char *dir_path; |
20c457b8 | 2441 | |
7014e0e3 | 2442 | sys_dir = tracing_events__opendir(); |
20c457b8 TR |
2443 | if (!sys_dir) |
2444 | return 0; | |
2445 | ||
22a9f41b | 2446 | for_each_subsystem(sys_dir, sys_dirent) { |
25a7d914 ACM |
2447 | dir_path = get_events_file(sys_dirent->d_name); |
2448 | if (!dir_path) | |
2449 | continue; | |
20c457b8 TR |
2450 | evt_dir = opendir(dir_path); |
2451 | if (!evt_dir) | |
25a7d914 | 2452 | goto next; |
20c457b8 | 2453 | |
c02cab22 | 2454 | for_each_event(dir_path, evt_dir, evt_dirent) { |
20c457b8 | 2455 | snprintf(evt_path, MAXPATHLEN, "%s:%s", |
22a9f41b | 2456 | sys_dirent->d_name, evt_dirent->d_name); |
20c457b8 TR |
2457 | if (!strcmp(evt_path, event_string)) { |
2458 | closedir(evt_dir); | |
2459 | closedir(sys_dir); | |
2460 | return 1; | |
2461 | } | |
2462 | } | |
2463 | closedir(evt_dir); | |
25a7d914 ACM |
2464 | next: |
2465 | put_events_file(dir_path); | |
20c457b8 TR |
2466 | } |
2467 | closedir(sys_dir); | |
2468 | return 0; | |
2469 | } | |
2470 | ||
b41f1cec NK |
2471 | static bool is_event_supported(u8 type, unsigned config) |
2472 | { | |
2473 | bool ret = true; | |
88fee52e | 2474 | int open_return; |
32dcd021 | 2475 | struct evsel *evsel; |
b41f1cec NK |
2476 | struct perf_event_attr attr = { |
2477 | .type = type, | |
2478 | .config = config, | |
2479 | .disabled = 1, | |
b41f1cec | 2480 | }; |
9749b90e | 2481 | struct perf_thread_map *tmap = thread_map__new_by_tid(0); |
89896051 ACM |
2482 | |
2483 | if (tmap == NULL) | |
2484 | return false; | |
b41f1cec | 2485 | |
365c3ae7 | 2486 | evsel = evsel__new(&attr); |
b41f1cec | 2487 | if (evsel) { |
5972d1e0 | 2488 | open_return = evsel__open(evsel, NULL, tmap); |
88fee52e VW |
2489 | ret = open_return >= 0; |
2490 | ||
2491 | if (open_return == -EACCES) { | |
2492 | /* | |
2493 | * This happens if the paranoid value | |
2494 | * /proc/sys/kernel/perf_event_paranoid is set to 2 | |
2495 | * Re-run with exclude_kernel set; we don't do that | |
2496 | * by default as some ARM machines do not support it. | |
2497 | * | |
2498 | */ | |
1fc632ce | 2499 | evsel->core.attr.exclude_kernel = 1; |
5972d1e0 | 2500 | ret = evsel__open(evsel, NULL, tmap) >= 0; |
88fee52e | 2501 | } |
5eb2dd2a | 2502 | evsel__delete(evsel); |
b41f1cec NK |
2503 | } |
2504 | ||
7836e52e | 2505 | perf_thread_map__put(tmap); |
b41f1cec NK |
2506 | return ret; |
2507 | } | |
2508 | ||
40218dae MH |
2509 | void print_sdt_events(const char *subsys_glob, const char *event_glob, |
2510 | bool name_only) | |
2511 | { | |
2512 | struct probe_cache *pcache; | |
2513 | struct probe_cache_entry *ent; | |
2514 | struct strlist *bidlist, *sdtlist; | |
2515 | struct strlist_config cfg = {.dont_dupstr = true}; | |
2516 | struct str_node *nd, *nd2; | |
2517 | char *buf, *path, *ptr = NULL; | |
2518 | bool show_detail = false; | |
2519 | int ret; | |
2520 | ||
2521 | sdtlist = strlist__new(NULL, &cfg); | |
2522 | if (!sdtlist) { | |
2523 | pr_debug("Failed to allocate new strlist for SDT\n"); | |
2524 | return; | |
2525 | } | |
2526 | bidlist = build_id_cache__list_all(true); | |
2527 | if (!bidlist) { | |
2528 | pr_debug("Failed to get buildids: %d\n", errno); | |
2529 | return; | |
2530 | } | |
2531 | strlist__for_each_entry(nd, bidlist) { | |
f045b8c4 | 2532 | pcache = probe_cache__new(nd->s, NULL); |
40218dae MH |
2533 | if (!pcache) |
2534 | continue; | |
2535 | list_for_each_entry(ent, &pcache->entries, node) { | |
2536 | if (!ent->sdt) | |
2537 | continue; | |
2538 | if (subsys_glob && | |
2539 | !strglobmatch(ent->pev.group, subsys_glob)) | |
2540 | continue; | |
2541 | if (event_glob && | |
2542 | !strglobmatch(ent->pev.event, event_glob)) | |
2543 | continue; | |
2544 | ret = asprintf(&buf, "%s:%s@%s", ent->pev.group, | |
2545 | ent->pev.event, nd->s); | |
2546 | if (ret > 0) | |
2547 | strlist__add(sdtlist, buf); | |
2548 | } | |
2549 | probe_cache__delete(pcache); | |
2550 | } | |
2551 | strlist__delete(bidlist); | |
2552 | ||
2553 | strlist__for_each_entry(nd, sdtlist) { | |
2554 | buf = strchr(nd->s, '@'); | |
2555 | if (buf) | |
2556 | *(buf++) = '\0'; | |
2557 | if (name_only) { | |
2558 | printf("%s ", nd->s); | |
2559 | continue; | |
2560 | } | |
2561 | nd2 = strlist__next(nd); | |
2562 | if (nd2) { | |
2563 | ptr = strchr(nd2->s, '@'); | |
2564 | if (ptr) | |
2565 | *ptr = '\0'; | |
2566 | if (strcmp(nd->s, nd2->s) == 0) | |
2567 | show_detail = true; | |
2568 | } | |
2569 | if (show_detail) { | |
2570 | path = build_id_cache__origname(buf); | |
2571 | ret = asprintf(&buf, "%s@%s(%.12s)", nd->s, path, buf); | |
2572 | if (ret > 0) { | |
2573 | printf(" %-50s [%s]\n", buf, "SDT event"); | |
2574 | free(buf); | |
2575 | } | |
8bde8516 | 2576 | free(path); |
40218dae MH |
2577 | } else |
2578 | printf(" %-50s [%s]\n", nd->s, "SDT event"); | |
2579 | if (nd2) { | |
2580 | if (strcmp(nd->s, nd2->s) != 0) | |
2581 | show_detail = false; | |
2582 | if (ptr) | |
2583 | *ptr = '@'; | |
2584 | } | |
2585 | } | |
2586 | strlist__delete(sdtlist); | |
2587 | } | |
2588 | ||
a3277d2d | 2589 | int print_hwcache_events(const char *event_glob, bool name_only) |
668b8788 | 2590 | { |
ab0e4800 | 2591 | unsigned int type, op, i, evt_i = 0, evt_num = 0; |
0b668bc9 | 2592 | char name[64]; |
ab0e4800 YS |
2593 | char **evt_list = NULL; |
2594 | bool evt_num_known = false; | |
2595 | ||
2596 | restart: | |
2597 | if (evt_num_known) { | |
2598 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2599 | if (!evt_list) | |
2600 | goto out_enomem; | |
2601 | } | |
668b8788 ACM |
2602 | |
2603 | for (type = 0; type < PERF_COUNT_HW_CACHE_MAX; type++) { | |
2604 | for (op = 0; op < PERF_COUNT_HW_CACHE_OP_MAX; op++) { | |
2605 | /* skip invalid cache type */ | |
0b668bc9 | 2606 | if (!perf_evsel__is_cache_op_valid(type, op)) |
668b8788 ACM |
2607 | continue; |
2608 | ||
2609 | for (i = 0; i < PERF_COUNT_HW_CACHE_RESULT_MAX; i++) { | |
0b668bc9 ACM |
2610 | __perf_evsel__hw_cache_type_op_res_name(type, op, i, |
2611 | name, sizeof(name)); | |
947b4ad1 | 2612 | if (event_glob != NULL && !strglobmatch(name, event_glob)) |
668b8788 ACM |
2613 | continue; |
2614 | ||
b41f1cec NK |
2615 | if (!is_event_supported(PERF_TYPE_HW_CACHE, |
2616 | type | (op << 8) | (i << 16))) | |
2617 | continue; | |
2618 | ||
ab0e4800 YS |
2619 | if (!evt_num_known) { |
2620 | evt_num++; | |
2621 | continue; | |
2622 | } | |
2623 | ||
2624 | evt_list[evt_i] = strdup(name); | |
2625 | if (evt_list[evt_i] == NULL) | |
2626 | goto out_enomem; | |
2627 | evt_i++; | |
668b8788 ACM |
2628 | } |
2629 | } | |
2630 | } | |
2631 | ||
ab0e4800 YS |
2632 | if (!evt_num_known) { |
2633 | evt_num_known = true; | |
2634 | goto restart; | |
2635 | } | |
2636 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2637 | evt_i = 0; | |
2638 | while (evt_i < evt_num) { | |
2639 | if (name_only) { | |
2640 | printf("%s ", evt_list[evt_i++]); | |
2641 | continue; | |
2642 | } | |
2643 | printf(" %-50s [%s]\n", evt_list[evt_i++], | |
2644 | event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2645 | } | |
dfc431cb | 2646 | if (evt_num && pager_in_use()) |
dc098b35 | 2647 | printf("\n"); |
ab0e4800 YS |
2648 | |
2649 | out_free: | |
2650 | evt_num = evt_i; | |
2651 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2652 | zfree(&evt_list[evt_i]); | |
2653 | zfree(&evt_list); | |
2654 | return evt_num; | |
2655 | ||
2656 | out_enomem: | |
2657 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[PERF_TYPE_HW_CACHE]); | |
2658 | if (evt_list) | |
2659 | goto out_free; | |
2660 | return evt_num; | |
668b8788 ACM |
2661 | } |
2662 | ||
5e0861ba AK |
2663 | static void print_tool_event(const char *name, const char *event_glob, |
2664 | bool name_only) | |
2665 | { | |
2666 | if (event_glob && !strglobmatch(name, event_glob)) | |
2667 | return; | |
2668 | if (name_only) | |
2669 | printf("%s ", name); | |
2670 | else | |
2671 | printf(" %-50s [%s]\n", name, "Tool event"); | |
2672 | ||
2673 | } | |
2674 | ||
2675 | void print_tool_events(const char *event_glob, bool name_only) | |
2676 | { | |
2677 | print_tool_event("duration_time", event_glob, name_only); | |
2678 | if (pager_in_use()) | |
2679 | printf("\n"); | |
2680 | } | |
2681 | ||
705750f2 | 2682 | void print_symbol_events(const char *event_glob, unsigned type, |
a3277d2d FW |
2683 | struct event_symbol *syms, unsigned max, |
2684 | bool name_only) | |
8ad8db37 | 2685 | { |
ab0e4800 | 2686 | unsigned int i, evt_i = 0, evt_num = 0; |
947b4ad1 | 2687 | char name[MAX_NAME_LEN]; |
ab0e4800 YS |
2688 | char **evt_list = NULL; |
2689 | bool evt_num_known = false; | |
2690 | ||
2691 | restart: | |
2692 | if (evt_num_known) { | |
2693 | evt_list = zalloc(sizeof(char *) * evt_num); | |
2694 | if (!evt_list) | |
2695 | goto out_enomem; | |
2696 | syms -= max; | |
2697 | } | |
8ad8db37 | 2698 | |
1dc12760 | 2699 | for (i = 0; i < max; i++, syms++) { |
668b8788 | 2700 | |
e37df6c7 | 2701 | if (event_glob != NULL && syms->symbol != NULL && |
668b8788 ACM |
2702 | !(strglobmatch(syms->symbol, event_glob) || |
2703 | (syms->alias && strglobmatch(syms->alias, event_glob)))) | |
2704 | continue; | |
8ad8db37 | 2705 | |
b41f1cec NK |
2706 | if (!is_event_supported(type, i)) |
2707 | continue; | |
2708 | ||
ab0e4800 YS |
2709 | if (!evt_num_known) { |
2710 | evt_num++; | |
a3277d2d FW |
2711 | continue; |
2712 | } | |
2713 | ||
ab0e4800 | 2714 | if (!name_only && strlen(syms->alias)) |
947b4ad1 | 2715 | snprintf(name, MAX_NAME_LEN, "%s OR %s", syms->symbol, syms->alias); |
74d5b588 | 2716 | else |
bd8d57fb | 2717 | strlcpy(name, syms->symbol, MAX_NAME_LEN); |
8ad8db37 | 2718 | |
ab0e4800 YS |
2719 | evt_list[evt_i] = strdup(name); |
2720 | if (evt_list[evt_i] == NULL) | |
2721 | goto out_enomem; | |
2722 | evt_i++; | |
8ad8db37 IM |
2723 | } |
2724 | ||
ab0e4800 YS |
2725 | if (!evt_num_known) { |
2726 | evt_num_known = true; | |
2727 | goto restart; | |
2728 | } | |
2729 | qsort(evt_list, evt_num, sizeof(char *), cmp_string); | |
2730 | evt_i = 0; | |
2731 | while (evt_i < evt_num) { | |
2732 | if (name_only) { | |
2733 | printf("%s ", evt_list[evt_i++]); | |
2734 | continue; | |
2735 | } | |
2736 | printf(" %-50s [%s]\n", evt_list[evt_i++], event_type_descriptors[type]); | |
2737 | } | |
dfc431cb | 2738 | if (evt_num && pager_in_use()) |
668b8788 | 2739 | printf("\n"); |
ab0e4800 YS |
2740 | |
2741 | out_free: | |
2742 | evt_num = evt_i; | |
2743 | for (evt_i = 0; evt_i < evt_num; evt_i++) | |
2744 | zfree(&evt_list[evt_i]); | |
2745 | zfree(&evt_list); | |
2746 | return; | |
2747 | ||
2748 | out_enomem: | |
2749 | printf("FATAL: not enough memory to print %s\n", event_type_descriptors[type]); | |
2750 | if (evt_list) | |
2751 | goto out_free; | |
1dc12760 JO |
2752 | } |
2753 | ||
2754 | /* | |
2755 | * Print the help text for the event symbols: | |
2756 | */ | |
c8d6828a | 2757 | void print_events(const char *event_glob, bool name_only, bool quiet_flag, |
a7f6c8c8 | 2758 | bool long_desc, bool details_flag, bool deprecated) |
1dc12760 | 2759 | { |
1dc12760 | 2760 | print_symbol_events(event_glob, PERF_TYPE_HARDWARE, |
a3277d2d | 2761 | event_symbols_hw, PERF_COUNT_HW_MAX, name_only); |
1dc12760 JO |
2762 | |
2763 | print_symbol_events(event_glob, PERF_TYPE_SOFTWARE, | |
a3277d2d | 2764 | event_symbols_sw, PERF_COUNT_SW_MAX, name_only); |
5e0861ba | 2765 | print_tool_events(event_glob, name_only); |
1dc12760 | 2766 | |
a3277d2d | 2767 | print_hwcache_events(event_glob, name_only); |
668b8788 | 2768 | |
bf874fcf | 2769 | print_pmu_events(event_glob, name_only, quiet_flag, long_desc, |
a7f6c8c8 | 2770 | details_flag, deprecated); |
dc098b35 | 2771 | |
668b8788 ACM |
2772 | if (event_glob != NULL) |
2773 | return; | |
73c24cb8 | 2774 | |
a3277d2d | 2775 | if (!name_only) { |
a3277d2d FW |
2776 | printf(" %-50s [%s]\n", |
2777 | "rNNN", | |
2778 | event_type_descriptors[PERF_TYPE_RAW]); | |
2779 | printf(" %-50s [%s]\n", | |
2780 | "cpu/t1=v1[,t2=v2,t3 ...]/modifier", | |
2781 | event_type_descriptors[PERF_TYPE_RAW]); | |
dfc431cb ACM |
2782 | if (pager_in_use()) |
2783 | printf(" (see 'man perf-list' on how to encode it)\n\n"); | |
a3277d2d FW |
2784 | |
2785 | printf(" %-50s [%s]\n", | |
3741eb9f | 2786 | "mem:<addr>[/len][:access]", |
41bdcb23 | 2787 | event_type_descriptors[PERF_TYPE_BREAKPOINT]); |
dfc431cb ACM |
2788 | if (pager_in_use()) |
2789 | printf("\n"); | |
a3277d2d | 2790 | } |
1b290d67 | 2791 | |
a3277d2d | 2792 | print_tracepoint_events(NULL, NULL, name_only); |
40218dae MH |
2793 | |
2794 | print_sdt_events(NULL, NULL, name_only); | |
71b0acce | 2795 | |
33bbc571 | 2796 | metricgroup__print(true, true, NULL, name_only, details_flag); |
8ad8db37 | 2797 | } |
8f707d84 | 2798 | |
6cee6cd3 | 2799 | int parse_events__is_hardcoded_term(struct parse_events_term *term) |
8f707d84 | 2800 | { |
16fa7e82 | 2801 | return term->type_term != PARSE_EVENTS__TERM_TYPE_USER; |
8f707d84 JO |
2802 | } |
2803 | ||
67b49b38 JO |
2804 | static int new_term(struct parse_events_term **_term, |
2805 | struct parse_events_term *temp, | |
2806 | char *str, u64 num) | |
8f707d84 | 2807 | { |
6cee6cd3 | 2808 | struct parse_events_term *term; |
8f707d84 | 2809 | |
67b49b38 | 2810 | term = malloc(sizeof(*term)); |
8f707d84 JO |
2811 | if (!term) |
2812 | return -ENOMEM; | |
2813 | ||
67b49b38 | 2814 | *term = *temp; |
8f707d84 | 2815 | INIT_LIST_HEAD(&term->list); |
c2f1cead | 2816 | term->weak = false; |
8f707d84 | 2817 | |
67b49b38 | 2818 | switch (term->type_val) { |
8f707d84 JO |
2819 | case PARSE_EVENTS__TERM_TYPE_NUM: |
2820 | term->val.num = num; | |
2821 | break; | |
2822 | case PARSE_EVENTS__TERM_TYPE_STR: | |
2823 | term->val.str = str; | |
2824 | break; | |
2825 | default: | |
4be8be6b | 2826 | free(term); |
8f707d84 JO |
2827 | return -EINVAL; |
2828 | } | |
2829 | ||
2830 | *_term = term; | |
2831 | return 0; | |
2832 | } | |
2833 | ||
6cee6cd3 | 2834 | int parse_events_term__num(struct parse_events_term **term, |
cecf3a2e | 2835 | int type_term, char *config, u64 num, |
99e7138e | 2836 | bool no_value, |
bb78ce7d | 2837 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2838 | { |
bb78ce7d AH |
2839 | YYLTYPE *loc_term = loc_term_; |
2840 | YYLTYPE *loc_val = loc_val_; | |
2841 | ||
67b49b38 JO |
2842 | struct parse_events_term temp = { |
2843 | .type_val = PARSE_EVENTS__TERM_TYPE_NUM, | |
2844 | .type_term = type_term, | |
2845 | .config = config, | |
99e7138e | 2846 | .no_value = no_value, |
67b49b38 JO |
2847 | .err_term = loc_term ? loc_term->first_column : 0, |
2848 | .err_val = loc_val ? loc_val->first_column : 0, | |
2849 | }; | |
2850 | ||
2851 | return new_term(term, &temp, NULL, num); | |
16fa7e82 JO |
2852 | } |
2853 | ||
6cee6cd3 | 2854 | int parse_events_term__str(struct parse_events_term **term, |
cecf3a2e | 2855 | int type_term, char *config, char *str, |
bb78ce7d | 2856 | void *loc_term_, void *loc_val_) |
16fa7e82 | 2857 | { |
bb78ce7d AH |
2858 | YYLTYPE *loc_term = loc_term_; |
2859 | YYLTYPE *loc_val = loc_val_; | |
2860 | ||
67b49b38 JO |
2861 | struct parse_events_term temp = { |
2862 | .type_val = PARSE_EVENTS__TERM_TYPE_STR, | |
2863 | .type_term = type_term, | |
2864 | .config = config, | |
2865 | .err_term = loc_term ? loc_term->first_column : 0, | |
2866 | .err_val = loc_val ? loc_val->first_column : 0, | |
2867 | }; | |
2868 | ||
2869 | return new_term(term, &temp, str, 0); | |
16fa7e82 JO |
2870 | } |
2871 | ||
6cee6cd3 | 2872 | int parse_events_term__sym_hw(struct parse_events_term **term, |
1d33d6dc JO |
2873 | char *config, unsigned idx) |
2874 | { | |
2875 | struct event_symbol *sym; | |
b6645a72 | 2876 | char *str; |
67b49b38 JO |
2877 | struct parse_events_term temp = { |
2878 | .type_val = PARSE_EVENTS__TERM_TYPE_STR, | |
2879 | .type_term = PARSE_EVENTS__TERM_TYPE_USER, | |
b6645a72 | 2880 | .config = config, |
67b49b38 | 2881 | }; |
1d33d6dc | 2882 | |
b6645a72 IR |
2883 | if (!temp.config) { |
2884 | temp.config = strdup("event"); | |
2885 | if (!temp.config) | |
2886 | return -ENOMEM; | |
2887 | } | |
1d33d6dc JO |
2888 | BUG_ON(idx >= PERF_COUNT_HW_MAX); |
2889 | sym = &event_symbols_hw[idx]; | |
2890 | ||
b6645a72 IR |
2891 | str = strdup(sym->symbol); |
2892 | if (!str) | |
2893 | return -ENOMEM; | |
2894 | return new_term(term, &temp, str, 0); | |
1d33d6dc JO |
2895 | } |
2896 | ||
6cee6cd3 ACM |
2897 | int parse_events_term__clone(struct parse_events_term **new, |
2898 | struct parse_events_term *term) | |
a6146d50 | 2899 | { |
b6645a72 | 2900 | char *str; |
67b49b38 JO |
2901 | struct parse_events_term temp = { |
2902 | .type_val = term->type_val, | |
2903 | .type_term = term->type_term, | |
b6645a72 | 2904 | .config = NULL, |
67b49b38 JO |
2905 | .err_term = term->err_term, |
2906 | .err_val = term->err_val, | |
2907 | }; | |
2908 | ||
b6645a72 IR |
2909 | if (term->config) { |
2910 | temp.config = strdup(term->config); | |
2911 | if (!temp.config) | |
2912 | return -ENOMEM; | |
2913 | } | |
2914 | if (term->type_val == PARSE_EVENTS__TERM_TYPE_NUM) | |
2915 | return new_term(new, &temp, NULL, term->val.num); | |
2916 | ||
2917 | str = strdup(term->val.str); | |
2918 | if (!str) | |
2919 | return -ENOMEM; | |
2920 | return new_term(new, &temp, str, 0); | |
a6146d50 ZY |
2921 | } |
2922 | ||
1dc92556 IR |
2923 | void parse_events_term__delete(struct parse_events_term *term) |
2924 | { | |
2925 | if (term->array.nr_ranges) | |
2926 | zfree(&term->array.ranges); | |
2927 | ||
2928 | if (term->type_val != PARSE_EVENTS__TERM_TYPE_NUM) | |
2929 | zfree(&term->val.str); | |
2930 | ||
2931 | zfree(&term->config); | |
2932 | free(term); | |
2933 | } | |
2934 | ||
8255718f AK |
2935 | int parse_events_copy_term_list(struct list_head *old, |
2936 | struct list_head **new) | |
2937 | { | |
2938 | struct parse_events_term *term, *n; | |
2939 | int ret; | |
2940 | ||
2941 | if (!old) { | |
2942 | *new = NULL; | |
2943 | return 0; | |
2944 | } | |
2945 | ||
2946 | *new = malloc(sizeof(struct list_head)); | |
2947 | if (!*new) | |
2948 | return -ENOMEM; | |
2949 | INIT_LIST_HEAD(*new); | |
2950 | ||
2951 | list_for_each_entry (term, old, list) { | |
2952 | ret = parse_events_term__clone(&n, term); | |
2953 | if (ret) | |
2954 | return ret; | |
2955 | list_add_tail(&n->list, *new); | |
2956 | } | |
2957 | return 0; | |
2958 | } | |
2959 | ||
fc0a2c1d | 2960 | void parse_events_terms__purge(struct list_head *terms) |
8f707d84 | 2961 | { |
6cee6cd3 | 2962 | struct parse_events_term *term, *h; |
8f707d84 | 2963 | |
a8adfceb WN |
2964 | list_for_each_entry_safe(term, h, terms, list) { |
2965 | list_del_init(&term->list); | |
1dc92556 | 2966 | parse_events_term__delete(term); |
a8adfceb | 2967 | } |
8f707d84 | 2968 | } |
b39b8393 | 2969 | |
2146afc6 | 2970 | void parse_events_terms__delete(struct list_head *terms) |
fc0a2c1d | 2971 | { |
2146afc6 ACM |
2972 | if (!terms) |
2973 | return; | |
fc0a2c1d | 2974 | parse_events_terms__purge(terms); |
d20a5f2b | 2975 | free(terms); |
fc0a2c1d ACM |
2976 | } |
2977 | ||
2d055bf2 WN |
2978 | void parse_events__clear_array(struct parse_events_array *a) |
2979 | { | |
360e071b | 2980 | zfree(&a->ranges); |
2d055bf2 WN |
2981 | } |
2982 | ||
5d9cdc11 | 2983 | void parse_events_evlist_error(struct parse_events_state *parse_state, |
b39b8393 JO |
2984 | int idx, const char *str) |
2985 | { | |
448d732c | 2986 | if (!parse_state->error) |
a6ced2be | 2987 | return; |
448d732c IR |
2988 | |
2989 | parse_events__handle_error(parse_state->error, idx, strdup(str), NULL); | |
b39b8393 | 2990 | } |
ffeb883e | 2991 | |
17cb5f84 WN |
2992 | static void config_terms_list(char *buf, size_t buf_sz) |
2993 | { | |
2994 | int i; | |
2995 | bool first = true; | |
2996 | ||
2997 | buf[0] = '\0'; | |
2998 | for (i = 0; i < __PARSE_EVENTS__TERM_TYPE_NR; i++) { | |
2999 | const char *name = config_term_names[i]; | |
3000 | ||
1669e509 WN |
3001 | if (!config_term_avail(i, NULL)) |
3002 | continue; | |
17cb5f84 WN |
3003 | if (!name) |
3004 | continue; | |
3005 | if (name[0] == '<') | |
3006 | continue; | |
3007 | ||
3008 | if (strlen(buf) + strlen(name) + 2 >= buf_sz) | |
3009 | return; | |
3010 | ||
3011 | if (!first) | |
3012 | strcat(buf, ","); | |
3013 | else | |
3014 | first = false; | |
3015 | strcat(buf, name); | |
3016 | } | |
3017 | } | |
3018 | ||
ffeb883e HK |
3019 | /* |
3020 | * Return string contains valid config terms of an event. | |
3021 | * @additional_terms: For terms such as PMU sysfs terms. | |
3022 | */ | |
3023 | char *parse_events_formats_error_string(char *additional_terms) | |
3024 | { | |
3025 | char *str; | |
626a6b78 | 3026 | /* "no-overwrite" is the longest name */ |
17cb5f84 | 3027 | char static_terms[__PARSE_EVENTS__TERM_TYPE_NR * |
626a6b78 | 3028 | (sizeof("no-overwrite") - 1)]; |
ffeb883e | 3029 | |
17cb5f84 | 3030 | config_terms_list(static_terms, sizeof(static_terms)); |
ffeb883e HK |
3031 | /* valid terms */ |
3032 | if (additional_terms) { | |
26dee028 WN |
3033 | if (asprintf(&str, "valid terms: %s,%s", |
3034 | additional_terms, static_terms) < 0) | |
ffeb883e HK |
3035 | goto fail; |
3036 | } else { | |
26dee028 | 3037 | if (asprintf(&str, "valid terms: %s", static_terms) < 0) |
ffeb883e HK |
3038 | goto fail; |
3039 | } | |
3040 | return str; | |
3041 | ||
3042 | fail: | |
3043 | return NULL; | |
3044 | } |