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1#include "builtin.h"
2#include "perf.h"
3
4#include "util/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
10#define MEM_OPERATION_LOAD "load"
11#define MEM_OPERATION_STORE "store"
12
13static const char *mem_operation = MEM_OPERATION_LOAD;
14
15struct perf_mem {
16 struct perf_tool tool;
17 char const *input_name;
18 bool hide_unresolved;
19 bool dump_raw;
20 const char *cpu_list;
21 DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
22};
23
24static const char * const mem_usage[] = {
25 "perf mem [<options>] {record <command> |report}",
26 NULL
27};
28
29static int __cmd_record(int argc, const char **argv)
30{
31 int rec_argc, i = 0, j;
32 const char **rec_argv;
33 char event[64];
34 int ret;
35
36 rec_argc = argc + 4;
37 rec_argv = calloc(rec_argc + 1, sizeof(char *));
38 if (!rec_argv)
39 return -1;
40
41 rec_argv[i++] = strdup("record");
42 if (!strcmp(mem_operation, MEM_OPERATION_LOAD))
43 rec_argv[i++] = strdup("-W");
44 rec_argv[i++] = strdup("-d");
45 rec_argv[i++] = strdup("-e");
46
47 if (strcmp(mem_operation, MEM_OPERATION_LOAD))
48 sprintf(event, "cpu/mem-stores/pp");
49 else
50 sprintf(event, "cpu/mem-loads/pp");
51
52 rec_argv[i++] = strdup(event);
53 for (j = 1; j < argc; j++, i++)
54 rec_argv[i] = argv[j];
55
56 ret = cmd_record(i, rec_argv, NULL);
57 free(rec_argv);
58 return ret;
59}
60
61static int
62dump_raw_samples(struct perf_tool *tool,
63 union perf_event *event,
64 struct perf_sample *sample,
65 struct machine *machine)
66{
67 struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
68 struct addr_location al;
69 const char *fmt;
70
71 if (perf_event__preprocess_sample(event, machine, &al, sample) < 0) {
72 fprintf(stderr, "problem processing %d event, skipping it.\n",
73 event->header.type);
74 return -1;
75 }
76
77 if (al.filtered || (mem->hide_unresolved && al.sym == NULL))
78 return 0;
79
80 if (al.map != NULL)
81 al.map->dso->hit = 1;
82
83 if (symbol_conf.field_sep) {
84 fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64
85 "%s0x%"PRIx64"%s%s:%s\n";
86 } else {
87 fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
88 "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
89 symbol_conf.field_sep = " ";
90 }
91
92 printf(fmt,
93 sample->pid,
94 symbol_conf.field_sep,
95 sample->tid,
96 symbol_conf.field_sep,
97 sample->ip,
98 symbol_conf.field_sep,
99 sample->addr,
100 symbol_conf.field_sep,
101 sample->weight,
102 symbol_conf.field_sep,
103 sample->data_src,
104 symbol_conf.field_sep,
105 al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
106 al.sym ? al.sym->name : "???");
107
108 return 0;
109}
110
111static int process_sample_event(struct perf_tool *tool,
112 union perf_event *event,
113 struct perf_sample *sample,
114 struct perf_evsel *evsel __maybe_unused,
115 struct machine *machine)
116{
117 return dump_raw_samples(tool, event, sample, machine);
118}
119
120static int report_raw_events(struct perf_mem *mem)
121{
122 struct perf_data_file file = {
123 .path = input_name,
124 .mode = PERF_DATA_MODE_READ,
125 };
126 int err = -EINVAL;
127 int ret;
128 struct perf_session *session = perf_session__new(&file, false,
129 &mem->tool);
130
131 if (session == NULL)
132 return -ENOMEM;
133
134 if (mem->cpu_list) {
135 ret = perf_session__cpu_bitmap(session, mem->cpu_list,
136 mem->cpu_bitmap);
137 if (ret)
138 goto out_delete;
139 }
140
141 if (symbol__init() < 0)
142 return -1;
143
144 printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
145
146 err = perf_session__process_events(session, &mem->tool);
147 if (err)
148 return err;
149
150 return 0;
151
152out_delete:
153 perf_session__delete(session);
154 return err;
155}
156
157static int report_events(int argc, const char **argv, struct perf_mem *mem)
158{
159 const char **rep_argv;
160 int ret, i = 0, j, rep_argc;
161
162 if (mem->dump_raw)
163 return report_raw_events(mem);
164
165 rep_argc = argc + 3;
166 rep_argv = calloc(rep_argc + 1, sizeof(char *));
167 if (!rep_argv)
168 return -1;
169
170 rep_argv[i++] = strdup("report");
171 rep_argv[i++] = strdup("--mem-mode");
172 rep_argv[i++] = strdup("-n"); /* display number of samples */
173
174 /*
175 * there is no weight (cost) associated with stores, so don't print
176 * the column
177 */
178 if (strcmp(mem_operation, MEM_OPERATION_LOAD))
179 rep_argv[i++] = strdup("--sort=mem,sym,dso,symbol_daddr,"
180 "dso_daddr,tlb,locked");
181
182 for (j = 1; j < argc; j++, i++)
183 rep_argv[i] = argv[j];
184
185 ret = cmd_report(i, rep_argv, NULL);
186 free(rep_argv);
187 return ret;
188}
189
190int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
191{
192 struct stat st;
193 struct perf_mem mem = {
194 .tool = {
195 .sample = process_sample_event,
196 .mmap = perf_event__process_mmap,
197 .mmap2 = perf_event__process_mmap2,
198 .comm = perf_event__process_comm,
199 .lost = perf_event__process_lost,
200 .fork = perf_event__process_fork,
201 .build_id = perf_event__process_build_id,
202 .ordered_samples = true,
203 },
204 .input_name = "perf.data",
205 };
206 const struct option mem_options[] = {
207 OPT_STRING('t', "type", &mem_operation,
208 "type", "memory operations(load/store)"),
209 OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
210 "dump raw samples in ASCII"),
211 OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
212 "Only display entries resolved to a symbol"),
213 OPT_STRING('i', "input", &input_name, "file",
214 "input file name"),
215 OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
216 "list of cpus to profile"),
217 OPT_STRING('x', "field-separator", &symbol_conf.field_sep,
218 "separator",
219 "separator for columns, no spaces will be added"
220 " between columns '.' is reserved."),
221 OPT_END()
222 };
223
224 argc = parse_options(argc, argv, mem_options, mem_usage,
225 PARSE_OPT_STOP_AT_NON_OPTION);
226
227 if (!argc || !(strncmp(argv[0], "rec", 3) || mem_operation))
228 usage_with_options(mem_usage, mem_options);
229
230 if (!mem.input_name || !strlen(mem.input_name)) {
231 if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
232 mem.input_name = "-";
233 else
234 mem.input_name = "perf.data";
235 }
236
237 if (!strncmp(argv[0], "rec", 3))
238 return __cmd_record(argc, argv);
239 else if (!strncmp(argv[0], "rep", 3))
240 return report_events(argc, argv, &mem);
241 else
242 usage_with_options(mem_usage, mem_options);
243
244 return 0;
245}
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}