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