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v4.6
 
 
 
 
 
  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	struct option options[] = {
 66	OPT_CALLBACK('e', "event", &mem, "event",
 67		     "event selector. use 'perf mem record -e list' to list available events",
 68		     parse_record_events),
 
 69	OPT_INCR('v', "verbose", &verbose,
 70		 "be more verbose (show counter open errors, etc)"),
 
 
 71	OPT_END()
 72	};
 73
 74	argc = parse_options(argc, argv, options, record_mem_usage,
 75			     PARSE_OPT_STOP_AT_NON_OPTION);
 76
 77	rec_argc = argc + 7; /* max number of arguments */
 78	rec_argv = calloc(rec_argc + 1, sizeof(char *));
 79	if (!rec_argv)
 80		return -1;
 81
 82	rec_argv[i++] = "record";
 83
 84	if (mem->operation & MEM_OPERATION_LOAD)
 85		perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
 86
 
 
 
 87	if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
 88		rec_argv[i++] = "-W";
 89
 90	rec_argv[i++] = "-d";
 91
 
 
 
 92	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
 93		if (!perf_mem_events[j].record)
 94			continue;
 95
 96		if (!perf_mem_events[j].supported) {
 97			pr_err("failed: event '%s' not supported\n",
 98			       perf_mem_events__name(j));
 
 99			return -1;
100		}
101
102		rec_argv[i++] = "-e";
103		rec_argv[i++] = perf_mem_events__name(j);
104	};
105
 
 
 
 
 
 
106	for (j = 0; j < argc; j++, i++)
107		rec_argv[i] = argv[j];
108
109	if (verbose > 0) {
110		pr_debug("calling: record ");
111
112		while (rec_argv[j]) {
113			pr_debug("%s ", rec_argv[j]);
114			j++;
115		}
116		pr_debug("\n");
117	}
118
119	ret = cmd_record(i, rec_argv, NULL);
120	free(rec_argv);
121	return ret;
122}
123
124static int
125dump_raw_samples(struct perf_tool *tool,
126		 union perf_event *event,
127		 struct perf_sample *sample,
128		 struct machine *machine)
129{
130	struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
131	struct addr_location al;
132	const char *fmt;
133
134	if (machine__resolve(machine, &al, sample) < 0) {
135		fprintf(stderr, "problem processing %d event, skipping it.\n",
136				event->header.type);
137		return -1;
138	}
139
140	if (al.filtered || (mem->hide_unresolved && al.sym == NULL))
141		goto out_put;
142
143	if (al.map != NULL)
144		al.map->dso->hit = 1;
145
146	if (symbol_conf.field_sep) {
147		fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64
148		      "%s0x%"PRIx64"%s%s:%s\n";
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
149	} else {
150		fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
151		      "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
152		symbol_conf.field_sep = " ";
153	}
 
 
 
 
154
155	printf(fmt,
156		sample->pid,
157		symbol_conf.field_sep,
158		sample->tid,
159		symbol_conf.field_sep,
160		sample->ip,
161		symbol_conf.field_sep,
162		sample->addr,
163		symbol_conf.field_sep,
164		sample->weight,
165		symbol_conf.field_sep,
166		sample->data_src,
167		symbol_conf.field_sep,
168		al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
169		al.sym ? al.sym->name : "???");
 
170out_put:
171	addr_location__put(&al);
172	return 0;
173}
174
175static int process_sample_event(struct perf_tool *tool,
176				union perf_event *event,
177				struct perf_sample *sample,
178				struct perf_evsel *evsel __maybe_unused,
179				struct machine *machine)
180{
181	return dump_raw_samples(tool, event, sample, machine);
182}
183
184static int report_raw_events(struct perf_mem *mem)
185{
186	struct perf_data_file file = {
187		.path = input_name,
188		.mode = PERF_DATA_MODE_READ,
189		.force = mem->force,
 
 
190	};
191	int ret;
192	struct perf_session *session = perf_session__new(&file, false,
193							 &mem->tool);
194
195	if (session == NULL)
196		return -1;
197
198	if (mem->cpu_list) {
199		ret = perf_session__cpu_bitmap(session, mem->cpu_list,
200					       mem->cpu_bitmap);
201		if (ret < 0)
202			goto out_delete;
203	}
204
205	ret = symbol__init(&session->header.env);
206	if (ret < 0)
207		goto out_delete;
208
209	printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
 
 
 
210
211	ret = perf_session__process_events(session);
212
213out_delete:
214	perf_session__delete(session);
215	return ret;
216}
217
218static int report_events(int argc, const char **argv, struct perf_mem *mem)
219{
220	const char **rep_argv;
221	int ret, i = 0, j, rep_argc;
222
223	if (mem->dump_raw)
224		return report_raw_events(mem);
225
226	rep_argc = argc + 3;
227	rep_argv = calloc(rep_argc + 1, sizeof(char *));
228	if (!rep_argv)
229		return -1;
230
231	rep_argv[i++] = "report";
232	rep_argv[i++] = "--mem-mode";
233	rep_argv[i++] = "-n"; /* display number of samples */
234
235	/*
236	 * there is no weight (cost) associated with stores, so don't print
237	 * the column
238	 */
239	if (!(mem->operation & MEM_OPERATION_LOAD))
240		rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
241				"dso_daddr,tlb,locked";
 
 
 
 
 
 
 
242
243	for (j = 1; j < argc; j++, i++)
244		rep_argv[i] = argv[j];
245
246	ret = cmd_report(i, rep_argv, NULL);
247	free(rep_argv);
248	return ret;
249}
250
251struct mem_mode {
252	const char *name;
253	int mode;
254};
255
256#define MEM_OPT(n, m) \
257	{ .name = n, .mode = (m) }
258
259#define MEM_END { .name = NULL }
260
261static const struct mem_mode mem_modes[]={
262	MEM_OPT("load", MEM_OPERATION_LOAD),
263	MEM_OPT("store", MEM_OPERATION_STORE),
264	MEM_END
265};
266
267static int
268parse_mem_ops(const struct option *opt, const char *str, int unset)
269{
270	int *mode = (int *)opt->value;
271	const struct mem_mode *m;
272	char *s, *os = NULL, *p;
273	int ret = -1;
274
275	if (unset)
276		return 0;
277
278	/* str may be NULL in case no arg is passed to -t */
279	if (str) {
280		/* because str is read-only */
281		s = os = strdup(str);
282		if (!s)
283			return -1;
284
285		/* reset mode */
286		*mode = 0;
287
288		for (;;) {
289			p = strchr(s, ',');
290			if (p)
291				*p = '\0';
292
293			for (m = mem_modes; m->name; m++) {
294				if (!strcasecmp(s, m->name))
295					break;
296			}
297			if (!m->name) {
298				fprintf(stderr, "unknown sampling op %s,"
299					    " check man page\n", s);
300				goto error;
301			}
302
303			*mode |= m->mode;
304
305			if (!p)
306				break;
307
308			s = p + 1;
309		}
310	}
311	ret = 0;
312
313	if (*mode == 0)
314		*mode = MEM_OPERATION_LOAD;
315error:
316	free(os);
317	return ret;
318}
319
320int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
321{
322	struct stat st;
323	struct perf_mem mem = {
324		.tool = {
325			.sample		= process_sample_event,
326			.mmap		= perf_event__process_mmap,
327			.mmap2		= perf_event__process_mmap2,
328			.comm		= perf_event__process_comm,
329			.lost		= perf_event__process_lost,
330			.fork		= perf_event__process_fork,
331			.build_id	= perf_event__process_build_id,
 
332			.ordered_events	= true,
333		},
334		.input_name		 = "perf.data",
335		/*
336		 * default to both load an store sampling
337		 */
338		.operation		 = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
339	};
340	const struct option mem_options[] = {
341	OPT_CALLBACK('t', "type", &mem.operation,
342		   "type", "memory operations(load,store) Default load,store",
343		    parse_mem_ops),
344	OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
345		    "dump raw samples in ASCII"),
346	OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
347		    "Only display entries resolved to a symbol"),
348	OPT_STRING('i', "input", &input_name, "file",
349		   "input file name"),
350	OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
351		   "list of cpus to profile"),
352	OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
353		   "separator",
354		   "separator for columns, no spaces will be added"
355		   " between columns '.' is reserved."),
356	OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"),
 
357	OPT_END()
358	};
359	const char *const mem_subcommands[] = { "record", "report", NULL };
360	const char *mem_usage[] = {
361		NULL,
362		NULL
363	};
364
365	if (perf_mem_events__init()) {
366		pr_err("failed: memory events not supported\n");
367		return -1;
368	}
369
370	argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
371					mem_usage, PARSE_OPT_STOP_AT_NON_OPTION);
372
373	if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
374		usage_with_options(mem_usage, mem_options);
375
376	if (!mem.input_name || !strlen(mem.input_name)) {
377		if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
378			mem.input_name = "-";
379		else
380			mem.input_name = "perf.data";
381	}
382
383	if (!strncmp(argv[0], "rec", 3))
384		return __cmd_record(argc, argv, &mem);
385	else if (!strncmp(argv[0], "rep", 3))
386		return report_events(argc, argv, &mem);
387	else
388		usage_with_options(mem_usage, mem_options);
389
390	return 0;
391}
v4.17
  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/mem-events.h"
 15#include "util/debug.h"
 16#include "util/symbol.h"
 17
 18#define MEM_OPERATION_LOAD	0x1
 19#define MEM_OPERATION_STORE	0x2
 20
 21struct perf_mem {
 22	struct perf_tool	tool;
 23	char const		*input_name;
 24	bool			hide_unresolved;
 25	bool			dump_raw;
 26	bool			force;
 27	bool			phys_addr;
 28	int			operation;
 29	const char		*cpu_list;
 30	DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
 31};
 32
 33static int parse_record_events(const struct option *opt,
 34			       const char *str, int unset __maybe_unused)
 35{
 36	struct perf_mem *mem = *(struct perf_mem **)opt->value;
 37	int j;
 38
 39	if (strcmp(str, "list")) {
 40		if (!perf_mem_events__parse(str)) {
 41			mem->operation = 0;
 42			return 0;
 43		}
 44		exit(-1);
 45	}
 46
 47	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
 48		struct perf_mem_event *e = &perf_mem_events[j];
 49
 50		fprintf(stderr, "%-13s%-*s%s\n",
 51			e->tag,
 52			verbose > 0 ? 25 : 0,
 53			verbose > 0 ? perf_mem_events__name(j) : "",
 54			e->supported ? ": available" : "");
 55	}
 56	exit(0);
 57}
 58
 59static const char * const __usage[] = {
 60	"perf mem record [<options>] [<command>]",
 61	"perf mem record [<options>] -- <command> [<options>]",
 62	NULL
 63};
 64
 65static const char * const *record_mem_usage = __usage;
 66
 67static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
 68{
 69	int rec_argc, i = 0, j;
 70	const char **rec_argv;
 71	int ret;
 72	bool all_user = false, all_kernel = false;
 73	struct option options[] = {
 74	OPT_CALLBACK('e', "event", &mem, "event",
 75		     "event selector. use 'perf mem record -e list' to list available events",
 76		     parse_record_events),
 77	OPT_UINTEGER(0, "ldlat", &perf_mem_events__loads_ldlat, "mem-loads latency"),
 78	OPT_INCR('v', "verbose", &verbose,
 79		 "be more verbose (show counter open errors, etc)"),
 80	OPT_BOOLEAN('U', "all-user", &all_user, "collect only user level data"),
 81	OPT_BOOLEAN('K', "all-kernel", &all_kernel, "collect only kernel level data"),
 82	OPT_END()
 83	};
 84
 85	argc = parse_options(argc, argv, options, record_mem_usage,
 86			     PARSE_OPT_KEEP_UNKNOWN);
 87
 88	rec_argc = argc + 9; /* max number of arguments */
 89	rec_argv = calloc(rec_argc + 1, sizeof(char *));
 90	if (!rec_argv)
 91		return -1;
 92
 93	rec_argv[i++] = "record";
 94
 95	if (mem->operation & MEM_OPERATION_LOAD)
 96		perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
 97
 98	if (mem->operation & MEM_OPERATION_STORE)
 99		perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
100
101	if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
102		rec_argv[i++] = "-W";
103
104	rec_argv[i++] = "-d";
105
106	if (mem->phys_addr)
107		rec_argv[i++] = "--phys-data";
108
109	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
110		if (!perf_mem_events[j].record)
111			continue;
112
113		if (!perf_mem_events[j].supported) {
114			pr_err("failed: event '%s' not supported\n",
115			       perf_mem_events__name(j));
116			free(rec_argv);
117			return -1;
118		}
119
120		rec_argv[i++] = "-e";
121		rec_argv[i++] = perf_mem_events__name(j);
122	};
123
124	if (all_user)
125		rec_argv[i++] = "--all-user";
126
127	if (all_kernel)
128		rec_argv[i++] = "--all-kernel";
129
130	for (j = 0; j < argc; j++, i++)
131		rec_argv[i] = argv[j];
132
133	if (verbose > 0) {
134		pr_debug("calling: record ");
135
136		while (rec_argv[j]) {
137			pr_debug("%s ", rec_argv[j]);
138			j++;
139		}
140		pr_debug("\n");
141	}
142
143	ret = cmd_record(i, rec_argv);
144	free(rec_argv);
145	return ret;
146}
147
148static int
149dump_raw_samples(struct perf_tool *tool,
150		 union perf_event *event,
151		 struct perf_sample *sample,
152		 struct machine *machine)
153{
154	struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
155	struct addr_location al;
156	const char *fmt;
157
158	if (machine__resolve(machine, &al, sample) < 0) {
159		fprintf(stderr, "problem processing %d event, skipping it.\n",
160				event->header.type);
161		return -1;
162	}
163
164	if (al.filtered || (mem->hide_unresolved && al.sym == NULL))
165		goto out_put;
166
167	if (al.map != NULL)
168		al.map->dso->hit = 1;
169
170	if (mem->phys_addr) {
171		if (symbol_conf.field_sep) {
172			fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s0x%016"PRIx64
173			      "%s%"PRIu64"%s0x%"PRIx64"%s%s:%s\n";
174		} else {
175			fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
176			      "%s0x%016"PRIx64"%s%5"PRIu64"%s0x%06"PRIx64
177			      "%s%s:%s\n";
178			symbol_conf.field_sep = " ";
179		}
180
181		printf(fmt,
182			sample->pid,
183			symbol_conf.field_sep,
184			sample->tid,
185			symbol_conf.field_sep,
186			sample->ip,
187			symbol_conf.field_sep,
188			sample->addr,
189			symbol_conf.field_sep,
190			sample->phys_addr,
191			symbol_conf.field_sep,
192			sample->weight,
193			symbol_conf.field_sep,
194			sample->data_src,
195			symbol_conf.field_sep,
196			al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
197			al.sym ? al.sym->name : "???");
198	} else {
199		if (symbol_conf.field_sep) {
200			fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64
201			      "%s0x%"PRIx64"%s%s:%s\n";
202		} else {
203			fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
204			      "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
205			symbol_conf.field_sep = " ";
206		}
207
208		printf(fmt,
209			sample->pid,
210			symbol_conf.field_sep,
211			sample->tid,
212			symbol_conf.field_sep,
213			sample->ip,
214			symbol_conf.field_sep,
215			sample->addr,
216			symbol_conf.field_sep,
217			sample->weight,
218			symbol_conf.field_sep,
219			sample->data_src,
220			symbol_conf.field_sep,
221			al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
222			al.sym ? al.sym->name : "???");
223	}
224out_put:
225	addr_location__put(&al);
226	return 0;
227}
228
229static int process_sample_event(struct perf_tool *tool,
230				union perf_event *event,
231				struct perf_sample *sample,
232				struct perf_evsel *evsel __maybe_unused,
233				struct machine *machine)
234{
235	return dump_raw_samples(tool, event, sample, machine);
236}
237
238static int report_raw_events(struct perf_mem *mem)
239{
240	struct perf_data data = {
241		.file      = {
242			.path = input_name,
243		},
244		.mode      = PERF_DATA_MODE_READ,
245		.force     = mem->force,
246	};
247	int ret;
248	struct perf_session *session = perf_session__new(&data, false,
249							 &mem->tool);
250
251	if (session == NULL)
252		return -1;
253
254	if (mem->cpu_list) {
255		ret = perf_session__cpu_bitmap(session, mem->cpu_list,
256					       mem->cpu_bitmap);
257		if (ret < 0)
258			goto out_delete;
259	}
260
261	ret = symbol__init(&session->header.env);
262	if (ret < 0)
263		goto out_delete;
264
265	if (mem->phys_addr)
266		printf("# PID, TID, IP, ADDR, PHYS ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
267	else
268		printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
269
270	ret = perf_session__process_events(session);
271
272out_delete:
273	perf_session__delete(session);
274	return ret;
275}
276
277static int report_events(int argc, const char **argv, struct perf_mem *mem)
278{
279	const char **rep_argv;
280	int ret, i = 0, j, rep_argc;
281
282	if (mem->dump_raw)
283		return report_raw_events(mem);
284
285	rep_argc = argc + 3;
286	rep_argv = calloc(rep_argc + 1, sizeof(char *));
287	if (!rep_argv)
288		return -1;
289
290	rep_argv[i++] = "report";
291	rep_argv[i++] = "--mem-mode";
292	rep_argv[i++] = "-n"; /* display number of samples */
293
294	/*
295	 * there is no weight (cost) associated with stores, so don't print
296	 * the column
297	 */
298	if (!(mem->operation & MEM_OPERATION_LOAD)) {
299		if (mem->phys_addr)
300			rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
301					"dso_daddr,tlb,locked,phys_daddr";
302		else
303			rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
304					"dso_daddr,tlb,locked";
305	} else if (mem->phys_addr)
306		rep_argv[i++] = "--sort=local_weight,mem,sym,dso,symbol_daddr,"
307				"dso_daddr,snoop,tlb,locked,phys_daddr";
308
309	for (j = 1; j < argc; j++, i++)
310		rep_argv[i] = argv[j];
311
312	ret = cmd_report(i, rep_argv);
313	free(rep_argv);
314	return ret;
315}
316
317struct mem_mode {
318	const char *name;
319	int mode;
320};
321
322#define MEM_OPT(n, m) \
323	{ .name = n, .mode = (m) }
324
325#define MEM_END { .name = NULL }
326
327static const struct mem_mode mem_modes[]={
328	MEM_OPT("load", MEM_OPERATION_LOAD),
329	MEM_OPT("store", MEM_OPERATION_STORE),
330	MEM_END
331};
332
333static int
334parse_mem_ops(const struct option *opt, const char *str, int unset)
335{
336	int *mode = (int *)opt->value;
337	const struct mem_mode *m;
338	char *s, *os = NULL, *p;
339	int ret = -1;
340
341	if (unset)
342		return 0;
343
344	/* str may be NULL in case no arg is passed to -t */
345	if (str) {
346		/* because str is read-only */
347		s = os = strdup(str);
348		if (!s)
349			return -1;
350
351		/* reset mode */
352		*mode = 0;
353
354		for (;;) {
355			p = strchr(s, ',');
356			if (p)
357				*p = '\0';
358
359			for (m = mem_modes; m->name; m++) {
360				if (!strcasecmp(s, m->name))
361					break;
362			}
363			if (!m->name) {
364				fprintf(stderr, "unknown sampling op %s,"
365					    " check man page\n", s);
366				goto error;
367			}
368
369			*mode |= m->mode;
370
371			if (!p)
372				break;
373
374			s = p + 1;
375		}
376	}
377	ret = 0;
378
379	if (*mode == 0)
380		*mode = MEM_OPERATION_LOAD;
381error:
382	free(os);
383	return ret;
384}
385
386int cmd_mem(int argc, const char **argv)
387{
388	struct stat st;
389	struct perf_mem mem = {
390		.tool = {
391			.sample		= process_sample_event,
392			.mmap		= perf_event__process_mmap,
393			.mmap2		= perf_event__process_mmap2,
394			.comm		= perf_event__process_comm,
395			.lost		= perf_event__process_lost,
396			.fork		= perf_event__process_fork,
397			.build_id	= perf_event__process_build_id,
398			.namespaces	= perf_event__process_namespaces,
399			.ordered_events	= true,
400		},
401		.input_name		 = "perf.data",
402		/*
403		 * default to both load an store sampling
404		 */
405		.operation		 = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
406	};
407	const struct option mem_options[] = {
408	OPT_CALLBACK('t', "type", &mem.operation,
409		   "type", "memory operations(load,store) Default load,store",
410		    parse_mem_ops),
411	OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
412		    "dump raw samples in ASCII"),
413	OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
414		    "Only display entries resolved to a symbol"),
415	OPT_STRING('i', "input", &input_name, "file",
416		   "input file name"),
417	OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
418		   "list of cpus to profile"),
419	OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
420		   "separator",
421		   "separator for columns, no spaces will be added"
422		   " between columns '.' is reserved."),
423	OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"),
424	OPT_BOOLEAN('p', "phys-data", &mem.phys_addr, "Record/Report sample physical addresses"),
425	OPT_END()
426	};
427	const char *const mem_subcommands[] = { "record", "report", NULL };
428	const char *mem_usage[] = {
429		NULL,
430		NULL
431	};
432
433	if (perf_mem_events__init()) {
434		pr_err("failed: memory events not supported\n");
435		return -1;
436	}
437
438	argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
439					mem_usage, PARSE_OPT_KEEP_UNKNOWN);
440
441	if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
442		usage_with_options(mem_usage, mem_options);
443
444	if (!mem.input_name || !strlen(mem.input_name)) {
445		if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
446			mem.input_name = "-";
447		else
448			mem.input_name = "perf.data";
449	}
450
451	if (!strncmp(argv[0], "rec", 3))
452		return __cmd_record(argc, argv, &mem);
453	else if (!strncmp(argv[0], "rep", 3))
454		return report_events(argc, argv, &mem);
455	else
456		usage_with_options(mem_usage, mem_options);
457
458	return 0;
459}