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1// SPDX-License-Identifier: GPL-2.0
2#include <inttypes.h>
3#include <sys/types.h>
4#include <sys/stat.h>
5#include <unistd.h>
6#include "builtin.h"
7
8#include <subcmd/parse-options.h>
9#include "util/auxtrace.h"
10#include "util/trace-event.h"
11#include "util/tool.h"
12#include "util/session.h"
13#include "util/data.h"
14#include "util/map_symbol.h"
15#include "util/mem-events.h"
16#include "util/debug.h"
17#include "util/dso.h"
18#include "util/map.h"
19#include "util/symbol.h"
20#include "util/pmus.h"
21#include "util/sample.h"
22#include "util/string2.h"
23#include "util/util.h"
24#include <linux/err.h>
25
26#define MEM_OPERATION_LOAD 0x1
27#define MEM_OPERATION_STORE 0x2
28
29struct perf_mem {
30 struct perf_tool tool;
31 char const *input_name;
32 bool hide_unresolved;
33 bool dump_raw;
34 bool force;
35 bool phys_addr;
36 bool data_page_size;
37 int operation;
38 const char *cpu_list;
39 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
40};
41
42static int parse_record_events(const struct option *opt,
43 const char *str, int unset __maybe_unused)
44{
45 struct perf_mem *mem = *(struct perf_mem **)opt->value;
46 struct perf_pmu *pmu;
47
48 pmu = perf_mem_events_find_pmu();
49 if (!pmu) {
50 pr_err("failed: there is no PMU that supports perf mem\n");
51 exit(-1);
52 }
53
54 if (!strcmp(str, "list")) {
55 perf_pmu__mem_events_list(pmu);
56 exit(0);
57 }
58 if (perf_pmu__mem_events_parse(pmu, str))
59 exit(-1);
60
61 mem->operation = 0;
62 return 0;
63}
64
65static const char * const __usage[] = {
66 "perf mem record [<options>] [<command>]",
67 "perf mem record [<options>] -- <command> [<options>]",
68 NULL
69};
70
71static const char * const *record_mem_usage = __usage;
72
73static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
74{
75 int rec_argc, i = 0, j;
76 int start, end;
77 const char **rec_argv;
78 int ret;
79 bool all_user = false, all_kernel = false;
80 struct perf_mem_event *e;
81 struct perf_pmu *pmu;
82 struct option options[] = {
83 OPT_CALLBACK('e', "event", &mem, "event",
84 "event selector. use 'perf mem record -e list' to list available events",
85 parse_record_events),
86 OPT_UINTEGER(0, "ldlat", &perf_mem_events__loads_ldlat, "mem-loads latency"),
87 OPT_INCR('v', "verbose", &verbose,
88 "be more verbose (show counter open errors, etc)"),
89 OPT_BOOLEAN('U', "all-user", &all_user, "collect only user level data"),
90 OPT_BOOLEAN('K', "all-kernel", &all_kernel, "collect only kernel level data"),
91 OPT_END()
92 };
93
94 pmu = perf_mem_events_find_pmu();
95 if (!pmu) {
96 pr_err("failed: no PMU supports the memory events\n");
97 return -1;
98 }
99
100 if (perf_pmu__mem_events_init(pmu)) {
101 pr_err("failed: memory events not supported\n");
102 return -1;
103 }
104
105 argc = parse_options(argc, argv, options, record_mem_usage,
106 PARSE_OPT_KEEP_UNKNOWN);
107
108 /* Max number of arguments multiplied by number of PMUs that can support them. */
109 rec_argc = argc + 9 * (perf_pmu__mem_events_num_mem_pmus(pmu) + 1);
110
111 if (mem->cpu_list)
112 rec_argc += 2;
113
114 rec_argv = calloc(rec_argc + 1, sizeof(char *));
115 if (!rec_argv)
116 return -1;
117
118 rec_argv[i++] = "record";
119
120 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD_STORE);
121
122 /*
123 * The load and store operations are required, use the event
124 * PERF_MEM_EVENTS__LOAD_STORE if it is supported.
125 */
126 if (e->tag &&
127 (mem->operation & MEM_OPERATION_LOAD) &&
128 (mem->operation & MEM_OPERATION_STORE)) {
129 e->record = true;
130 rec_argv[i++] = "-W";
131 } else {
132 if (mem->operation & MEM_OPERATION_LOAD) {
133 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD);
134 e->record = true;
135 }
136
137 if (mem->operation & MEM_OPERATION_STORE) {
138 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__STORE);
139 e->record = true;
140 }
141 }
142
143 e = perf_pmu__mem_events_ptr(pmu, PERF_MEM_EVENTS__LOAD);
144 if (e->record)
145 rec_argv[i++] = "-W";
146
147 rec_argv[i++] = "-d";
148
149 if (mem->phys_addr)
150 rec_argv[i++] = "--phys-data";
151
152 if (mem->data_page_size)
153 rec_argv[i++] = "--data-page-size";
154
155 start = i;
156 ret = perf_mem_events__record_args(rec_argv, &i);
157 if (ret)
158 goto out;
159 end = i;
160
161 if (all_user)
162 rec_argv[i++] = "--all-user";
163
164 if (all_kernel)
165 rec_argv[i++] = "--all-kernel";
166
167 if (mem->cpu_list) {
168 rec_argv[i++] = "-C";
169 rec_argv[i++] = mem->cpu_list;
170 }
171
172 for (j = 0; j < argc; j++, i++)
173 rec_argv[i] = argv[j];
174
175 if (verbose > 0) {
176 pr_debug("calling: record ");
177
178 for (j = start; j < end; j++)
179 pr_debug("%s ", rec_argv[j]);
180
181 pr_debug("\n");
182 }
183
184 ret = cmd_record(i, rec_argv);
185out:
186 free(rec_argv);
187 return ret;
188}
189
190static int
191dump_raw_samples(struct perf_tool *tool,
192 union perf_event *event,
193 struct perf_sample *sample,
194 struct machine *machine)
195{
196 struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
197 struct addr_location al;
198 const char *fmt, *field_sep;
199 char str[PAGE_SIZE_NAME_LEN];
200 struct dso *dso = NULL;
201
202 addr_location__init(&al);
203 if (machine__resolve(machine, &al, sample) < 0) {
204 fprintf(stderr, "problem processing %d event, skipping it.\n",
205 event->header.type);
206 addr_location__exit(&al);
207 return -1;
208 }
209
210 if (al.filtered || (mem->hide_unresolved && al.sym == NULL))
211 goto out_put;
212
213 if (al.map != NULL) {
214 dso = map__dso(al.map);
215 if (dso)
216 dso->hit = 1;
217 }
218
219 field_sep = symbol_conf.field_sep;
220 if (field_sep) {
221 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s";
222 } else {
223 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64"%s";
224 symbol_conf.field_sep = " ";
225 }
226 printf(fmt,
227 sample->pid,
228 symbol_conf.field_sep,
229 sample->tid,
230 symbol_conf.field_sep,
231 sample->ip,
232 symbol_conf.field_sep,
233 sample->addr,
234 symbol_conf.field_sep);
235
236 if (mem->phys_addr) {
237 printf("0x%016"PRIx64"%s",
238 sample->phys_addr,
239 symbol_conf.field_sep);
240 }
241
242 if (mem->data_page_size) {
243 printf("%s%s",
244 get_page_size_name(sample->data_page_size, str),
245 symbol_conf.field_sep);
246 }
247
248 if (field_sep)
249 fmt = "%"PRIu64"%s0x%"PRIx64"%s%s:%s\n";
250 else
251 fmt = "%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
252
253 printf(fmt,
254 sample->weight,
255 symbol_conf.field_sep,
256 sample->data_src,
257 symbol_conf.field_sep,
258 dso ? dso->long_name : "???",
259 al.sym ? al.sym->name : "???");
260out_put:
261 addr_location__exit(&al);
262 return 0;
263}
264
265static int process_sample_event(struct perf_tool *tool,
266 union perf_event *event,
267 struct perf_sample *sample,
268 struct evsel *evsel __maybe_unused,
269 struct machine *machine)
270{
271 return dump_raw_samples(tool, event, sample, machine);
272}
273
274static int report_raw_events(struct perf_mem *mem)
275{
276 struct itrace_synth_opts itrace_synth_opts = {
277 .set = true,
278 .mem = true, /* Only enable memory event */
279 .default_no_sample = true,
280 };
281
282 struct perf_data data = {
283 .path = input_name,
284 .mode = PERF_DATA_MODE_READ,
285 .force = mem->force,
286 };
287 int ret;
288 struct perf_session *session = perf_session__new(&data, &mem->tool);
289
290 if (IS_ERR(session))
291 return PTR_ERR(session);
292
293 session->itrace_synth_opts = &itrace_synth_opts;
294
295 if (mem->cpu_list) {
296 ret = perf_session__cpu_bitmap(session, mem->cpu_list,
297 mem->cpu_bitmap);
298 if (ret < 0)
299 goto out_delete;
300 }
301
302 ret = symbol__init(&session->header.env);
303 if (ret < 0)
304 goto out_delete;
305
306 printf("# PID, TID, IP, ADDR, ");
307
308 if (mem->phys_addr)
309 printf("PHYS ADDR, ");
310
311 if (mem->data_page_size)
312 printf("DATA PAGE SIZE, ");
313
314 printf("LOCAL WEIGHT, DSRC, SYMBOL\n");
315
316 ret = perf_session__process_events(session);
317
318out_delete:
319 perf_session__delete(session);
320 return ret;
321}
322static char *get_sort_order(struct perf_mem *mem)
323{
324 bool has_extra_options = (mem->phys_addr | mem->data_page_size) ? true : false;
325 char sort[128];
326
327 /*
328 * there is no weight (cost) associated with stores, so don't print
329 * the column
330 */
331 if (!(mem->operation & MEM_OPERATION_LOAD)) {
332 strcpy(sort, "--sort=mem,sym,dso,symbol_daddr,"
333 "dso_daddr,tlb,locked");
334 } else if (has_extra_options) {
335 strcpy(sort, "--sort=local_weight,mem,sym,dso,symbol_daddr,"
336 "dso_daddr,snoop,tlb,locked,blocked");
337 } else
338 return NULL;
339
340 if (mem->phys_addr)
341 strcat(sort, ",phys_daddr");
342
343 if (mem->data_page_size)
344 strcat(sort, ",data_page_size");
345
346 return strdup(sort);
347}
348
349static int report_events(int argc, const char **argv, struct perf_mem *mem)
350{
351 const char **rep_argv;
352 int ret, i = 0, j, rep_argc;
353 char *new_sort_order;
354
355 if (mem->dump_raw)
356 return report_raw_events(mem);
357
358 rep_argc = argc + 3;
359 rep_argv = calloc(rep_argc + 1, sizeof(char *));
360 if (!rep_argv)
361 return -1;
362
363 rep_argv[i++] = "report";
364 rep_argv[i++] = "--mem-mode";
365 rep_argv[i++] = "-n"; /* display number of samples */
366
367 new_sort_order = get_sort_order(mem);
368 if (new_sort_order)
369 rep_argv[i++] = new_sort_order;
370
371 for (j = 1; j < argc; j++, i++)
372 rep_argv[i] = argv[j];
373
374 ret = cmd_report(i, rep_argv);
375 free(rep_argv);
376 return ret;
377}
378
379struct mem_mode {
380 const char *name;
381 int mode;
382};
383
384#define MEM_OPT(n, m) \
385 { .name = n, .mode = (m) }
386
387#define MEM_END { .name = NULL }
388
389static const struct mem_mode mem_modes[]={
390 MEM_OPT("load", MEM_OPERATION_LOAD),
391 MEM_OPT("store", MEM_OPERATION_STORE),
392 MEM_END
393};
394
395static int
396parse_mem_ops(const struct option *opt, const char *str, int unset)
397{
398 int *mode = (int *)opt->value;
399 const struct mem_mode *m;
400 char *s, *os = NULL, *p;
401 int ret = -1;
402
403 if (unset)
404 return 0;
405
406 /* str may be NULL in case no arg is passed to -t */
407 if (str) {
408 /* because str is read-only */
409 s = os = strdup(str);
410 if (!s)
411 return -1;
412
413 /* reset mode */
414 *mode = 0;
415
416 for (;;) {
417 p = strchr(s, ',');
418 if (p)
419 *p = '\0';
420
421 for (m = mem_modes; m->name; m++) {
422 if (!strcasecmp(s, m->name))
423 break;
424 }
425 if (!m->name) {
426 fprintf(stderr, "unknown sampling op %s,"
427 " check man page\n", s);
428 goto error;
429 }
430
431 *mode |= m->mode;
432
433 if (!p)
434 break;
435
436 s = p + 1;
437 }
438 }
439 ret = 0;
440
441 if (*mode == 0)
442 *mode = MEM_OPERATION_LOAD;
443error:
444 free(os);
445 return ret;
446}
447
448int cmd_mem(int argc, const char **argv)
449{
450 struct stat st;
451 struct perf_mem mem = {
452 .tool = {
453 .sample = process_sample_event,
454 .mmap = perf_event__process_mmap,
455 .mmap2 = perf_event__process_mmap2,
456 .comm = perf_event__process_comm,
457 .lost = perf_event__process_lost,
458 .fork = perf_event__process_fork,
459 .attr = perf_event__process_attr,
460 .build_id = perf_event__process_build_id,
461 .namespaces = perf_event__process_namespaces,
462 .auxtrace_info = perf_event__process_auxtrace_info,
463 .auxtrace = perf_event__process_auxtrace,
464 .auxtrace_error = perf_event__process_auxtrace_error,
465 .ordered_events = true,
466 },
467 .input_name = "perf.data",
468 /*
469 * default to both load an store sampling
470 */
471 .operation = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
472 };
473 const struct option mem_options[] = {
474 OPT_CALLBACK('t', "type", &mem.operation,
475 "type", "memory operations(load,store) Default load,store",
476 parse_mem_ops),
477 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
478 "dump raw samples in ASCII"),
479 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
480 "Only display entries resolved to a symbol"),
481 OPT_STRING('i', "input", &input_name, "file",
482 "input file name"),
483 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
484 "list of cpus to profile"),
485 OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
486 "separator",
487 "separator for columns, no spaces will be added"
488 " between columns '.' is reserved."),
489 OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"),
490 OPT_BOOLEAN('p', "phys-data", &mem.phys_addr, "Record/Report sample physical addresses"),
491 OPT_BOOLEAN(0, "data-page-size", &mem.data_page_size, "Record/Report sample data address page size"),
492 OPT_END()
493 };
494 const char *const mem_subcommands[] = { "record", "report", NULL };
495 const char *mem_usage[] = {
496 NULL,
497 NULL
498 };
499
500 argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
501 mem_usage, PARSE_OPT_KEEP_UNKNOWN);
502
503 if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
504 usage_with_options(mem_usage, mem_options);
505
506 if (!mem.input_name || !strlen(mem.input_name)) {
507 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
508 mem.input_name = "-";
509 else
510 mem.input_name = "perf.data";
511 }
512
513 if (strlen(argv[0]) > 2 && strstarts("record", argv[0]))
514 return __cmd_record(argc, argv, &mem);
515 else if (strlen(argv[0]) > 2 && strstarts("report", argv[0]))
516 return report_events(argc, argv, &mem);
517 else
518 usage_with_options(mem_usage, mem_options);
519
520 return 0;
521}
1#include "builtin.h"
2#include "perf.h"
3
4#include <subcmd/parse-options.h>
5#include "util/trace-event.h"
6#include "util/tool.h"
7#include "util/session.h"
8#include "util/data.h"
9#include "util/mem-events.h"
10#include "util/debug.h"
11
12#define MEM_OPERATION_LOAD 0x1
13#define MEM_OPERATION_STORE 0x2
14
15struct perf_mem {
16 struct perf_tool tool;
17 char const *input_name;
18 bool hide_unresolved;
19 bool dump_raw;
20 bool force;
21 int operation;
22 const char *cpu_list;
23 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
24};
25
26static int parse_record_events(const struct option *opt,
27 const char *str, int unset __maybe_unused)
28{
29 struct perf_mem *mem = *(struct perf_mem **)opt->value;
30 int j;
31
32 if (strcmp(str, "list")) {
33 if (!perf_mem_events__parse(str)) {
34 mem->operation = 0;
35 return 0;
36 }
37 exit(-1);
38 }
39
40 for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
41 struct perf_mem_event *e = &perf_mem_events[j];
42
43 fprintf(stderr, "%-13s%-*s%s\n",
44 e->tag,
45 verbose ? 25 : 0,
46 verbose ? perf_mem_events__name(j) : "",
47 e->supported ? ": available" : "");
48 }
49 exit(0);
50}
51
52static const char * const __usage[] = {
53 "perf mem record [<options>] [<command>]",
54 "perf mem record [<options>] -- <command> [<options>]",
55 NULL
56};
57
58static const char * const *record_mem_usage = __usage;
59
60static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
61{
62 int rec_argc, i = 0, j;
63 const char **rec_argv;
64 int ret;
65 bool all_user = false, all_kernel = false;
66 struct option options[] = {
67 OPT_CALLBACK('e', "event", &mem, "event",
68 "event selector. use 'perf mem record -e list' to list available events",
69 parse_record_events),
70 OPT_UINTEGER(0, "ldlat", &perf_mem_events__loads_ldlat, "mem-loads latency"),
71 OPT_INCR('v', "verbose", &verbose,
72 "be more verbose (show counter open errors, etc)"),
73 OPT_BOOLEAN('U', "all-user", &all_user, "collect only user level data"),
74 OPT_BOOLEAN('K', "all-kernel", &all_kernel, "collect only kernel level data"),
75 OPT_END()
76 };
77
78 argc = parse_options(argc, argv, options, record_mem_usage,
79 PARSE_OPT_STOP_AT_NON_OPTION);
80
81 rec_argc = argc + 9; /* max number of arguments */
82 rec_argv = calloc(rec_argc + 1, sizeof(char *));
83 if (!rec_argv)
84 return -1;
85
86 rec_argv[i++] = "record";
87
88 if (mem->operation & MEM_OPERATION_LOAD)
89 perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
90
91 if (mem->operation & MEM_OPERATION_STORE)
92 perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
93
94 if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
95 rec_argv[i++] = "-W";
96
97 rec_argv[i++] = "-d";
98
99 for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
100 if (!perf_mem_events[j].record)
101 continue;
102
103 if (!perf_mem_events[j].supported) {
104 pr_err("failed: event '%s' not supported\n",
105 perf_mem_events__name(j));
106 return -1;
107 }
108
109 rec_argv[i++] = "-e";
110 rec_argv[i++] = perf_mem_events__name(j);
111 };
112
113 if (all_user)
114 rec_argv[i++] = "--all-user";
115
116 if (all_kernel)
117 rec_argv[i++] = "--all-kernel";
118
119 for (j = 0; j < argc; j++, i++)
120 rec_argv[i] = argv[j];
121
122 if (verbose > 0) {
123 pr_debug("calling: record ");
124
125 while (rec_argv[j]) {
126 pr_debug("%s ", rec_argv[j]);
127 j++;
128 }
129 pr_debug("\n");
130 }
131
132 ret = cmd_record(i, rec_argv, NULL);
133 free(rec_argv);
134 return ret;
135}
136
137static int
138dump_raw_samples(struct perf_tool *tool,
139 union perf_event *event,
140 struct perf_sample *sample,
141 struct machine *machine)
142{
143 struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
144 struct addr_location al;
145 const char *fmt;
146
147 if (machine__resolve(machine, &al, sample) < 0) {
148 fprintf(stderr, "problem processing %d event, skipping it.\n",
149 event->header.type);
150 return -1;
151 }
152
153 if (al.filtered || (mem->hide_unresolved && al.sym == NULL))
154 goto out_put;
155
156 if (al.map != NULL)
157 al.map->dso->hit = 1;
158
159 if (symbol_conf.field_sep) {
160 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64
161 "%s0x%"PRIx64"%s%s:%s\n";
162 } else {
163 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
164 "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
165 symbol_conf.field_sep = " ";
166 }
167
168 printf(fmt,
169 sample->pid,
170 symbol_conf.field_sep,
171 sample->tid,
172 symbol_conf.field_sep,
173 sample->ip,
174 symbol_conf.field_sep,
175 sample->addr,
176 symbol_conf.field_sep,
177 sample->weight,
178 symbol_conf.field_sep,
179 sample->data_src,
180 symbol_conf.field_sep,
181 al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
182 al.sym ? al.sym->name : "???");
183out_put:
184 addr_location__put(&al);
185 return 0;
186}
187
188static int process_sample_event(struct perf_tool *tool,
189 union perf_event *event,
190 struct perf_sample *sample,
191 struct perf_evsel *evsel __maybe_unused,
192 struct machine *machine)
193{
194 return dump_raw_samples(tool, event, sample, machine);
195}
196
197static int report_raw_events(struct perf_mem *mem)
198{
199 struct perf_data_file file = {
200 .path = input_name,
201 .mode = PERF_DATA_MODE_READ,
202 .force = mem->force,
203 };
204 int ret;
205 struct perf_session *session = perf_session__new(&file, false,
206 &mem->tool);
207
208 if (session == NULL)
209 return -1;
210
211 if (mem->cpu_list) {
212 ret = perf_session__cpu_bitmap(session, mem->cpu_list,
213 mem->cpu_bitmap);
214 if (ret < 0)
215 goto out_delete;
216 }
217
218 ret = symbol__init(&session->header.env);
219 if (ret < 0)
220 goto out_delete;
221
222 printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
223
224 ret = perf_session__process_events(session);
225
226out_delete:
227 perf_session__delete(session);
228 return ret;
229}
230
231static int report_events(int argc, const char **argv, struct perf_mem *mem)
232{
233 const char **rep_argv;
234 int ret, i = 0, j, rep_argc;
235
236 if (mem->dump_raw)
237 return report_raw_events(mem);
238
239 rep_argc = argc + 3;
240 rep_argv = calloc(rep_argc + 1, sizeof(char *));
241 if (!rep_argv)
242 return -1;
243
244 rep_argv[i++] = "report";
245 rep_argv[i++] = "--mem-mode";
246 rep_argv[i++] = "-n"; /* display number of samples */
247
248 /*
249 * there is no weight (cost) associated with stores, so don't print
250 * the column
251 */
252 if (!(mem->operation & MEM_OPERATION_LOAD))
253 rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
254 "dso_daddr,tlb,locked";
255
256 for (j = 1; j < argc; j++, i++)
257 rep_argv[i] = argv[j];
258
259 ret = cmd_report(i, rep_argv, NULL);
260 free(rep_argv);
261 return ret;
262}
263
264struct mem_mode {
265 const char *name;
266 int mode;
267};
268
269#define MEM_OPT(n, m) \
270 { .name = n, .mode = (m) }
271
272#define MEM_END { .name = NULL }
273
274static const struct mem_mode mem_modes[]={
275 MEM_OPT("load", MEM_OPERATION_LOAD),
276 MEM_OPT("store", MEM_OPERATION_STORE),
277 MEM_END
278};
279
280static int
281parse_mem_ops(const struct option *opt, const char *str, int unset)
282{
283 int *mode = (int *)opt->value;
284 const struct mem_mode *m;
285 char *s, *os = NULL, *p;
286 int ret = -1;
287
288 if (unset)
289 return 0;
290
291 /* str may be NULL in case no arg is passed to -t */
292 if (str) {
293 /* because str is read-only */
294 s = os = strdup(str);
295 if (!s)
296 return -1;
297
298 /* reset mode */
299 *mode = 0;
300
301 for (;;) {
302 p = strchr(s, ',');
303 if (p)
304 *p = '\0';
305
306 for (m = mem_modes; m->name; m++) {
307 if (!strcasecmp(s, m->name))
308 break;
309 }
310 if (!m->name) {
311 fprintf(stderr, "unknown sampling op %s,"
312 " check man page\n", s);
313 goto error;
314 }
315
316 *mode |= m->mode;
317
318 if (!p)
319 break;
320
321 s = p + 1;
322 }
323 }
324 ret = 0;
325
326 if (*mode == 0)
327 *mode = MEM_OPERATION_LOAD;
328error:
329 free(os);
330 return ret;
331}
332
333int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
334{
335 struct stat st;
336 struct perf_mem mem = {
337 .tool = {
338 .sample = process_sample_event,
339 .mmap = perf_event__process_mmap,
340 .mmap2 = perf_event__process_mmap2,
341 .comm = perf_event__process_comm,
342 .lost = perf_event__process_lost,
343 .fork = perf_event__process_fork,
344 .build_id = perf_event__process_build_id,
345 .ordered_events = true,
346 },
347 .input_name = "perf.data",
348 /*
349 * default to both load an store sampling
350 */
351 .operation = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
352 };
353 const struct option mem_options[] = {
354 OPT_CALLBACK('t', "type", &mem.operation,
355 "type", "memory operations(load,store) Default load,store",
356 parse_mem_ops),
357 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
358 "dump raw samples in ASCII"),
359 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
360 "Only display entries resolved to a symbol"),
361 OPT_STRING('i', "input", &input_name, "file",
362 "input file name"),
363 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
364 "list of cpus to profile"),
365 OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
366 "separator",
367 "separator for columns, no spaces will be added"
368 " between columns '.' is reserved."),
369 OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"),
370 OPT_END()
371 };
372 const char *const mem_subcommands[] = { "record", "report", NULL };
373 const char *mem_usage[] = {
374 NULL,
375 NULL
376 };
377
378 if (perf_mem_events__init()) {
379 pr_err("failed: memory events not supported\n");
380 return -1;
381 }
382
383 argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
384 mem_usage, PARSE_OPT_STOP_AT_NON_OPTION);
385
386 if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
387 usage_with_options(mem_usage, mem_options);
388
389 if (!mem.input_name || !strlen(mem.input_name)) {
390 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
391 mem.input_name = "-";
392 else
393 mem.input_name = "perf.data";
394 }
395
396 if (!strncmp(argv[0], "rec", 3))
397 return __cmd_record(argc, argv, &mem);
398 else if (!strncmp(argv[0], "rep", 3))
399 return report_events(argc, argv, &mem);
400 else
401 usage_with_options(mem_usage, mem_options);
402
403 return 0;
404}