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1#include "builtin.h"
2#include "perf.h"
3
4b6ab94e 4#include <subcmd/parse-options.h>
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5#include "util/trace-event.h"
6#include "util/tool.h"
7#include "util/session.h"
f5fc1412 8#include "util/data.h"
acbe613e 9#include "util/mem-events.h"
ce1e22b0 10#include "util/debug.h"
028f12ee 11
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12#define MEM_OPERATION_LOAD 0x1
13#define MEM_OPERATION_STORE 0x2
028f12ee 14
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15struct perf_mem {
16 struct perf_tool tool;
17 char const *input_name;
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18 bool hide_unresolved;
19 bool dump_raw;
62a1a63a 20 bool force;
66024122 21 int operation;
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22 const char *cpu_list;
23 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
24};
25
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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
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43 fprintf(stderr, "%-13s%-*s%s\n",
44 e->tag,
45 verbose ? 25 : 0,
2ba7ac58 46 verbose ? perf_mem_events__name(j) : "",
54fbad54 47 e->supported ? ": available" : "");
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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
66024122 60static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
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61{
62 int rec_argc, i = 0, j;
63 const char **rec_argv;
028f12ee 64 int ret;
ad16511b 65 bool all_user = false, all_kernel = false;
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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),
b0d745b3 70 OPT_UINTEGER(0, "ldlat", &perf_mem_events__loads_ldlat, "mem-loads latency"),
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71 OPT_INCR('v', "verbose", &verbose,
72 "be more verbose (show counter open errors, etc)"),
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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"),
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75 OPT_END()
76 };
77
78 argc = parse_options(argc, argv, options, record_mem_usage,
79 PARSE_OPT_STOP_AT_NON_OPTION);
028f12ee 80
ad16511b 81 rec_argc = argc + 9; /* max number of arguments */
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82 rec_argv = calloc(rec_argc + 1, sizeof(char *));
83 if (!rec_argv)
84 return -1;
85
67121f85 86 rec_argv[i++] = "record";
028f12ee 87
ce1e22b0 88 if (mem->operation & MEM_OPERATION_LOAD)
acbe613e 89 perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
ce1e22b0 90
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91 if (mem->operation & MEM_OPERATION_STORE)
92 perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
93
ce1e22b0 94 if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
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95 rec_argv[i++] = "-W";
96
97 rec_argv[i++] = "-d";
98
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99 for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
100 if (!perf_mem_events[j].record)
101 continue;
67121f85 102
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103 if (!perf_mem_events[j].supported) {
104 pr_err("failed: event '%s' not supported\n",
2ba7ac58 105 perf_mem_events__name(j));
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106 return -1;
107 }
108
67121f85 109 rec_argv[i++] = "-e";
2ba7ac58 110 rec_argv[i++] = perf_mem_events__name(j);
acbe613e 111 };
028f12ee 112
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113 if (all_user)
114 rec_argv[i++] = "--all-user";
115
116 if (all_kernel)
117 rec_argv[i++] = "--all-kernel";
118
ce1e22b0 119 for (j = 0; j < argc; j++, i++)
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120 rec_argv[i] = argv[j];
121
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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
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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,
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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
bb3eb566 147 if (machine__resolve(machine, &al, sample) < 0) {
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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))
b91fc39f 154 goto out_put;
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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,
ef89325f 173 sample->ip,
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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 : "???");
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183out_put:
184 addr_location__put(&al);
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185 return 0;
186}
187
188static int process_sample_event(struct perf_tool *tool,
189 union perf_event *event,
190 struct perf_sample *sample,
8b640cc4 191 struct perf_evsel *evsel __maybe_unused,
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192 struct machine *machine)
193{
8b640cc4 194 return dump_raw_samples(tool, event, sample, machine);
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195}
196
197static int report_raw_events(struct perf_mem *mem)
198{
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199 struct perf_data_file file = {
200 .path = input_name,
201 .mode = PERF_DATA_MODE_READ,
62a1a63a 202 .force = mem->force,
f5fc1412 203 };
028f12ee 204 int ret;
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205 struct perf_session *session = perf_session__new(&file, false,
206 &mem->tool);
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207
208 if (session == NULL)
52e02834 209 return -1;
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210
211 if (mem->cpu_list) {
212 ret = perf_session__cpu_bitmap(session, mem->cpu_list,
213 mem->cpu_bitmap);
1df9fade 214 if (ret < 0)
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215 goto out_delete;
216 }
217
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218 ret = symbol__init(&session->header.env);
219 if (ret < 0)
220 goto out_delete;
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221
222 printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
223
1df9fade 224 ret = perf_session__process_events(session);
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225
226out_delete:
227 perf_session__delete(session);
1df9fade 228 return ret;
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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
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244 rep_argv[i++] = "report";
245 rep_argv[i++] = "--mem-mode";
246 rep_argv[i++] = "-n"; /* display number of samples */
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247
248 /*
249 * there is no weight (cost) associated with stores, so don't print
250 * the column
251 */
66024122 252 if (!(mem->operation & MEM_OPERATION_LOAD))
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253 rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
254 "dso_daddr,tlb,locked";
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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
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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
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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,
5c5e854b 340 .mmap2 = perf_event__process_mmap2,
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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,
0a8cb85c 345 .ordered_events = true,
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346 },
347 .input_name = "perf.data",
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348 /*
349 * default to both load an store sampling
350 */
351 .operation = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
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352 };
353 const struct option mem_options[] = {
66024122 354 OPT_CALLBACK('t', "type", &mem.operation,
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355 "type", "memory operations(load,store) Default load,store",
356 parse_mem_ops),
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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"),
8b8ca6e1 365 OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
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366 "separator",
367 "separator for columns, no spaces will be added"
368 " between columns '.' is reserved."),
62a1a63a 369 OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"),
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370 OPT_END()
371 };
8d2a2a1d
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372 const char *const mem_subcommands[] = { "record", "report", NULL };
373 const char *mem_usage[] = {
374 NULL,
375 NULL
376 };
377
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378 if (perf_mem_events__init()) {
379 pr_err("failed: memory events not supported\n");
380 return -1;
381 }
382
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383 argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
384 mem_usage, PARSE_OPT_STOP_AT_NON_OPTION);
028f12ee 385
66024122 386 if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
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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))
66024122 397 return __cmd_record(argc, argv, &mem);
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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}