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v6.9.4
  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}
v5.9
  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/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 <linux/err.h>
 21
 22#define MEM_OPERATION_LOAD	0x1
 23#define MEM_OPERATION_STORE	0x2
 24
 25struct perf_mem {
 26	struct perf_tool	tool;
 27	char const		*input_name;
 28	bool			hide_unresolved;
 29	bool			dump_raw;
 30	bool			force;
 31	bool			phys_addr;
 
 32	int			operation;
 33	const char		*cpu_list;
 34	DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 35};
 36
 37static int parse_record_events(const struct option *opt,
 38			       const char *str, int unset __maybe_unused)
 39{
 40	struct perf_mem *mem = *(struct perf_mem **)opt->value;
 
 
 
 
 
 
 
 41
 42	if (!strcmp(str, "list")) {
 43		perf_mem_events__list();
 44		exit(0);
 45	}
 46	if (perf_mem_events__parse(str))
 47		exit(-1);
 48
 49	mem->operation = 0;
 50	return 0;
 51}
 52
 53static const char * const __usage[] = {
 54	"perf mem record [<options>] [<command>]",
 55	"perf mem record [<options>] -- <command> [<options>]",
 56	NULL
 57};
 58
 59static const char * const *record_mem_usage = __usage;
 60
 61static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
 62{
 63	int rec_argc, i = 0, j;
 
 64	const char **rec_argv;
 65	int ret;
 66	bool all_user = false, all_kernel = false;
 
 
 67	struct option options[] = {
 68	OPT_CALLBACK('e', "event", &mem, "event",
 69		     "event selector. use 'perf mem record -e list' to list available events",
 70		     parse_record_events),
 71	OPT_UINTEGER(0, "ldlat", &perf_mem_events__loads_ldlat, "mem-loads latency"),
 72	OPT_INCR('v', "verbose", &verbose,
 73		 "be more verbose (show counter open errors, etc)"),
 74	OPT_BOOLEAN('U', "all-user", &all_user, "collect only user level data"),
 75	OPT_BOOLEAN('K', "all-kernel", &all_kernel, "collect only kernel level data"),
 76	OPT_END()
 77	};
 78
 
 
 
 
 
 
 
 
 
 
 
 79	argc = parse_options(argc, argv, options, record_mem_usage,
 80			     PARSE_OPT_KEEP_UNKNOWN);
 81
 82	rec_argc = argc + 9; /* max number of arguments */
 
 
 
 
 
 83	rec_argv = calloc(rec_argc + 1, sizeof(char *));
 84	if (!rec_argv)
 85		return -1;
 86
 87	rec_argv[i++] = "record";
 88
 89	if (mem->operation & MEM_OPERATION_LOAD)
 90		perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
 91
 92	if (mem->operation & MEM_OPERATION_STORE)
 93		perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
 
 
 
 
 
 
 
 
 
 
 
 
 94
 95	if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
 
 
 
 
 
 
 
 96		rec_argv[i++] = "-W";
 97
 98	rec_argv[i++] = "-d";
 99
100	if (mem->phys_addr)
101		rec_argv[i++] = "--phys-data";
102
103	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
104		if (!perf_mem_events[j].record)
105			continue;
106
107		if (!perf_mem_events[j].supported) {
108			pr_err("failed: event '%s' not supported\n",
109			       perf_mem_events__name(j));
110			free(rec_argv);
111			return -1;
112		}
113
114		rec_argv[i++] = "-e";
115		rec_argv[i++] = perf_mem_events__name(j);
116	}
 
 
117
118	if (all_user)
119		rec_argv[i++] = "--all-user";
120
121	if (all_kernel)
122		rec_argv[i++] = "--all-kernel";
123
 
 
 
 
 
124	for (j = 0; j < argc; j++, i++)
125		rec_argv[i] = argv[j];
126
127	if (verbose > 0) {
128		pr_debug("calling: record ");
129
130		while (rec_argv[j]) {
131			pr_debug("%s ", rec_argv[j]);
132			j++;
133		}
134		pr_debug("\n");
135	}
136
137	ret = cmd_record(i, rec_argv);
 
138	free(rec_argv);
139	return ret;
140}
141
142static int
143dump_raw_samples(struct perf_tool *tool,
144		 union perf_event *event,
145		 struct perf_sample *sample,
146		 struct machine *machine)
147{
148	struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
149	struct addr_location al;
150	const char *fmt;
 
 
151
 
152	if (machine__resolve(machine, &al, sample) < 0) {
153		fprintf(stderr, "problem processing %d event, skipping it.\n",
154				event->header.type);
 
155		return -1;
156	}
157
158	if (al.filtered || (mem->hide_unresolved && al.sym == NULL))
159		goto out_put;
160
161	if (al.map != NULL)
162		al.map->dso->hit = 1;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
163
164	if (mem->phys_addr) {
165		if (symbol_conf.field_sep) {
166			fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s0x%016"PRIx64
167			      "%s%"PRIu64"%s0x%"PRIx64"%s%s:%s\n";
168		} else {
169			fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
170			      "%s0x%016"PRIx64"%s%5"PRIu64"%s0x%06"PRIx64
171			      "%s%s:%s\n";
172			symbol_conf.field_sep = " ";
173		}
174
175		printf(fmt,
176			sample->pid,
177			symbol_conf.field_sep,
178			sample->tid,
179			symbol_conf.field_sep,
180			sample->ip,
181			symbol_conf.field_sep,
182			sample->addr,
183			symbol_conf.field_sep,
184			sample->phys_addr,
185			symbol_conf.field_sep,
186			sample->weight,
187			symbol_conf.field_sep,
188			sample->data_src,
189			symbol_conf.field_sep,
190			al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
191			al.sym ? al.sym->name : "???");
192	} else {
193		if (symbol_conf.field_sep) {
194			fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64
195			      "%s0x%"PRIx64"%s%s:%s\n";
196		} else {
197			fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
198			      "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
199			symbol_conf.field_sep = " ";
200		}
201
202		printf(fmt,
203			sample->pid,
204			symbol_conf.field_sep,
205			sample->tid,
206			symbol_conf.field_sep,
207			sample->ip,
208			symbol_conf.field_sep,
209			sample->addr,
210			symbol_conf.field_sep,
211			sample->weight,
212			symbol_conf.field_sep,
213			sample->data_src,
214			symbol_conf.field_sep,
215			al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
216			al.sym ? al.sym->name : "???");
217	}
 
 
 
 
 
 
 
 
 
 
 
 
 
218out_put:
219	addr_location__put(&al);
220	return 0;
221}
222
223static int process_sample_event(struct perf_tool *tool,
224				union perf_event *event,
225				struct perf_sample *sample,
226				struct evsel *evsel __maybe_unused,
227				struct machine *machine)
228{
229	return dump_raw_samples(tool, event, sample, machine);
230}
231
232static int report_raw_events(struct perf_mem *mem)
233{
 
 
 
 
 
 
234	struct perf_data data = {
235		.path  = input_name,
236		.mode  = PERF_DATA_MODE_READ,
237		.force = mem->force,
238	};
239	int ret;
240	struct perf_session *session = perf_session__new(&data, false,
241							 &mem->tool);
242
243	if (IS_ERR(session))
244		return PTR_ERR(session);
245
 
 
246	if (mem->cpu_list) {
247		ret = perf_session__cpu_bitmap(session, mem->cpu_list,
248					       mem->cpu_bitmap);
249		if (ret < 0)
250			goto out_delete;
251	}
252
253	ret = symbol__init(&session->header.env);
254	if (ret < 0)
255		goto out_delete;
256
 
 
257	if (mem->phys_addr)
258		printf("# PID, TID, IP, ADDR, PHYS ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
259	else
260		printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
 
 
 
261
262	ret = perf_session__process_events(session);
263
264out_delete:
265	perf_session__delete(session);
266	return ret;
267}
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
268
269static int report_events(int argc, const char **argv, struct perf_mem *mem)
270{
271	const char **rep_argv;
272	int ret, i = 0, j, rep_argc;
 
273
274	if (mem->dump_raw)
275		return report_raw_events(mem);
276
277	rep_argc = argc + 3;
278	rep_argv = calloc(rep_argc + 1, sizeof(char *));
279	if (!rep_argv)
280		return -1;
281
282	rep_argv[i++] = "report";
283	rep_argv[i++] = "--mem-mode";
284	rep_argv[i++] = "-n"; /* display number of samples */
285
286	/*
287	 * there is no weight (cost) associated with stores, so don't print
288	 * the column
289	 */
290	if (!(mem->operation & MEM_OPERATION_LOAD)) {
291		if (mem->phys_addr)
292			rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
293					"dso_daddr,tlb,locked,phys_daddr";
294		else
295			rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
296					"dso_daddr,tlb,locked";
297	} else if (mem->phys_addr)
298		rep_argv[i++] = "--sort=local_weight,mem,sym,dso,symbol_daddr,"
299				"dso_daddr,snoop,tlb,locked,phys_daddr";
300
301	for (j = 1; j < argc; j++, i++)
302		rep_argv[i] = argv[j];
303
304	ret = cmd_report(i, rep_argv);
305	free(rep_argv);
306	return ret;
307}
308
309struct mem_mode {
310	const char *name;
311	int mode;
312};
313
314#define MEM_OPT(n, m) \
315	{ .name = n, .mode = (m) }
316
317#define MEM_END { .name = NULL }
318
319static const struct mem_mode mem_modes[]={
320	MEM_OPT("load", MEM_OPERATION_LOAD),
321	MEM_OPT("store", MEM_OPERATION_STORE),
322	MEM_END
323};
324
325static int
326parse_mem_ops(const struct option *opt, const char *str, int unset)
327{
328	int *mode = (int *)opt->value;
329	const struct mem_mode *m;
330	char *s, *os = NULL, *p;
331	int ret = -1;
332
333	if (unset)
334		return 0;
335
336	/* str may be NULL in case no arg is passed to -t */
337	if (str) {
338		/* because str is read-only */
339		s = os = strdup(str);
340		if (!s)
341			return -1;
342
343		/* reset mode */
344		*mode = 0;
345
346		for (;;) {
347			p = strchr(s, ',');
348			if (p)
349				*p = '\0';
350
351			for (m = mem_modes; m->name; m++) {
352				if (!strcasecmp(s, m->name))
353					break;
354			}
355			if (!m->name) {
356				fprintf(stderr, "unknown sampling op %s,"
357					    " check man page\n", s);
358				goto error;
359			}
360
361			*mode |= m->mode;
362
363			if (!p)
364				break;
365
366			s = p + 1;
367		}
368	}
369	ret = 0;
370
371	if (*mode == 0)
372		*mode = MEM_OPERATION_LOAD;
373error:
374	free(os);
375	return ret;
376}
377
378int cmd_mem(int argc, const char **argv)
379{
380	struct stat st;
381	struct perf_mem mem = {
382		.tool = {
383			.sample		= process_sample_event,
384			.mmap		= perf_event__process_mmap,
385			.mmap2		= perf_event__process_mmap2,
386			.comm		= perf_event__process_comm,
387			.lost		= perf_event__process_lost,
388			.fork		= perf_event__process_fork,
 
389			.build_id	= perf_event__process_build_id,
390			.namespaces	= perf_event__process_namespaces,
 
 
 
391			.ordered_events	= true,
392		},
393		.input_name		 = "perf.data",
394		/*
395		 * default to both load an store sampling
396		 */
397		.operation		 = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
398	};
399	const struct option mem_options[] = {
400	OPT_CALLBACK('t', "type", &mem.operation,
401		   "type", "memory operations(load,store) Default load,store",
402		    parse_mem_ops),
403	OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
404		    "dump raw samples in ASCII"),
405	OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
406		    "Only display entries resolved to a symbol"),
407	OPT_STRING('i', "input", &input_name, "file",
408		   "input file name"),
409	OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
410		   "list of cpus to profile"),
411	OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
412		   "separator",
413		   "separator for columns, no spaces will be added"
414		   " between columns '.' is reserved."),
415	OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"),
416	OPT_BOOLEAN('p', "phys-data", &mem.phys_addr, "Record/Report sample physical addresses"),
 
417	OPT_END()
418	};
419	const char *const mem_subcommands[] = { "record", "report", NULL };
420	const char *mem_usage[] = {
421		NULL,
422		NULL
423	};
424
425	if (perf_mem_events__init()) {
426		pr_err("failed: memory events not supported\n");
427		return -1;
428	}
429
430	argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
431					mem_usage, PARSE_OPT_KEEP_UNKNOWN);
432
433	if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
434		usage_with_options(mem_usage, mem_options);
435
436	if (!mem.input_name || !strlen(mem.input_name)) {
437		if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
438			mem.input_name = "-";
439		else
440			mem.input_name = "perf.data";
441	}
442
443	if (!strncmp(argv[0], "rec", 3))
444		return __cmd_record(argc, argv, &mem);
445	else if (!strncmp(argv[0], "rep", 3))
446		return report_events(argc, argv, &mem);
447	else
448		usage_with_options(mem_usage, mem_options);
449
450	return 0;
451}