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