1
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;
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
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
118
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,
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
316
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";
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
394 if (str) {
395
396 s = os = strdup(str);
397 if (!s)
398 return -1;
399
400
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
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}
509
