[mirror_ubuntu-jammy-kernel.git] / tools / perf / builtin-c2c.c

#include <linux/compiler.h>
#include <linux/kernel.h>
#include "util.h"
#include "debug.h"
#include "builtin.h"
#include <subcmd/parse-options.h>
#include "mem-events.h"
#include "session.h"
#include "hist.h"
#include "tool.h"
#include "data.h"
#include "sort.h"

struct c2c_hists {
	struct hists		hists;
	struct perf_hpp_list	list;
};

struct perf_c2c {
	struct perf_tool	tool;
	struct c2c_hists	hists;
};

static struct perf_c2c c2c;

static const char * const c2c_usage[] = {
	"perf c2c {record|report}",
	NULL
};

static const char * const __usage_report[] = {
	"perf c2c report",
	NULL
};

static const char * const *report_c2c_usage = __usage_report;

#define C2C_HEADER_MAX 2

struct c2c_header {
	struct {
		const char *text;
		int	    span;
	} line[C2C_HEADER_MAX];
};

struct c2c_dimension {
	struct c2c_header	 header;
	const char		*name;
	int			 width;
	struct sort_entry	*se;

	int64_t (*cmp)(struct perf_hpp_fmt *fmt,
		       struct hist_entry *, struct hist_entry *);
	int   (*entry)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
		       struct hist_entry *he);
	int   (*color)(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
		       struct hist_entry *he);
};

struct c2c_fmt {
	struct perf_hpp_fmt	 fmt;
	struct c2c_dimension	*dim;
};

static int c2c_width(struct perf_hpp_fmt *fmt,
		     struct perf_hpp *hpp __maybe_unused,
		     struct hists *hists __maybe_unused)
{
	struct c2c_fmt *c2c_fmt;
	struct c2c_dimension *dim;

	c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	dim = c2c_fmt->dim;

	return dim->se ? hists__col_len(hists, dim->se->se_width_idx) :
			 c2c_fmt->dim->width;
}

static int c2c_header(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
		      struct hists *hists, int line, int *span)
{
	struct perf_hpp_list *hpp_list = hists->hpp_list;
	struct c2c_fmt *c2c_fmt;
	struct c2c_dimension *dim;
	const char *text = NULL;
	int width = c2c_width(fmt, hpp, hists);

	c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	dim = c2c_fmt->dim;

	if (dim->se) {
		text = dim->header.line[line].text;
		/* Use the last line from sort_entry if not defined. */
		if (!text && (line == hpp_list->nr_header_lines - 1))
			text = dim->se->se_header;
	} else {
		text = dim->header.line[line].text;

		if (*span) {
			(*span)--;
			return 0;
		} else {
			*span = dim->header.line[line].span;
		}
	}

	if (text == NULL)
		text = "";

	return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
}

static struct c2c_dimension *dimensions[] = {
	NULL,
};

static void fmt_free(struct perf_hpp_fmt *fmt)
{
	struct c2c_fmt *c2c_fmt;

	c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	free(c2c_fmt);
}

static bool fmt_equal(struct perf_hpp_fmt *a, struct perf_hpp_fmt *b)
{
	struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
	struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);

	return c2c_a->dim == c2c_b->dim;
}

static struct c2c_dimension *get_dimension(const char *name)
{
	unsigned int i;

	for (i = 0; dimensions[i]; i++) {
		struct c2c_dimension *dim = dimensions[i];

		if (!strcmp(dim->name, name))
			return dim;
	};

	return NULL;
}

static int c2c_se_entry(struct perf_hpp_fmt *fmt, struct perf_hpp *hpp,
			struct hist_entry *he)
{
	struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	struct c2c_dimension *dim = c2c_fmt->dim;
	size_t len = fmt->user_len;

	if (!len)
		len = hists__col_len(he->hists, dim->se->se_width_idx);

	return dim->se->se_snprintf(he, hpp->buf, hpp->size, len);
}

static int64_t c2c_se_cmp(struct perf_hpp_fmt *fmt,
			  struct hist_entry *a, struct hist_entry *b)
{
	struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	struct c2c_dimension *dim = c2c_fmt->dim;

	return dim->se->se_cmp(a, b);
}

static int64_t c2c_se_collapse(struct perf_hpp_fmt *fmt,
			       struct hist_entry *a, struct hist_entry *b)
{
	struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	struct c2c_dimension *dim = c2c_fmt->dim;
	int64_t (*collapse_fn)(struct hist_entry *, struct hist_entry *);

	collapse_fn = dim->se->se_collapse ?: dim->se->se_cmp;
	return collapse_fn(a, b);
}

static struct c2c_fmt *get_format(const char *name)
{
	struct c2c_dimension *dim = get_dimension(name);
	struct c2c_fmt *c2c_fmt;
	struct perf_hpp_fmt *fmt;

	if (!dim)
		return NULL;

	c2c_fmt = zalloc(sizeof(*c2c_fmt));
	if (!c2c_fmt)
		return NULL;

	c2c_fmt->dim = dim;

	fmt = &c2c_fmt->fmt;
	INIT_LIST_HEAD(&fmt->list);
	INIT_LIST_HEAD(&fmt->sort_list);

	fmt->cmp	= dim->se ? c2c_se_cmp   : dim->cmp;
	fmt->sort	= dim->se ? c2c_se_cmp   : dim->cmp;
	fmt->entry	= dim->se ? c2c_se_entry : dim->entry;
	fmt->header	= c2c_header;
	fmt->width	= c2c_width;
	fmt->collapse	= dim->se ? c2c_se_collapse : dim->cmp;
	fmt->equal	= fmt_equal;
	fmt->free	= fmt_free;

	return c2c_fmt;
}

static int c2c_hists__init_output(struct perf_hpp_list *hpp_list, char *name)
{
	struct c2c_fmt *c2c_fmt = get_format(name);

	if (!c2c_fmt) {
		reset_dimensions();
		return output_field_add(hpp_list, name);
	}

	perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
	return 0;
}

static int c2c_hists__init_sort(struct perf_hpp_list *hpp_list, char *name)
{
	struct c2c_fmt *c2c_fmt = get_format(name);

	if (!c2c_fmt) {
		reset_dimensions();
		return sort_dimension__add(hpp_list, name, NULL, 0);
	}

	perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
	return 0;
}

#define PARSE_LIST(_list, _fn)							\
	do {									\
		char *tmp, *tok;						\
		ret = 0;							\
										\
		if (!_list)							\
			break;							\
										\
		for (tok = strtok_r((char *)_list, ", ", &tmp);			\
				tok; tok = strtok_r(NULL, ", ", &tmp)) {	\
			ret = _fn(hpp_list, tok);				\
			if (ret == -EINVAL) {					\
				error("Invalid --fields key: `%s'", tok);	\
				break;						\
			} else if (ret == -ESRCH) {				\
				error("Unknown --fields key: `%s'", tok);	\
				break;						\
			}							\
		}								\
	} while (0)

static int hpp_list__parse(struct perf_hpp_list *hpp_list,
			   const char *output_,
			   const char *sort_)
{
	char *output = output_ ? strdup(output_) : NULL;
	char *sort   = sort_   ? strdup(sort_) : NULL;
	int ret;

	PARSE_LIST(output, c2c_hists__init_output);
	PARSE_LIST(sort,   c2c_hists__init_sort);

	/* copy sort keys to output fields */
	perf_hpp__setup_output_field(hpp_list);

	/*
	 * We dont need other sorting keys other than those
	 * we already specified. It also really slows down
	 * the processing a lot with big number of output
	 * fields, so switching this off for c2c.
	 */

#if 0
	/* and then copy output fields to sort keys */
	perf_hpp__append_sort_keys(&hists->list);
#endif

	free(output);
	free(sort);
	return ret;
}

static int c2c_hists__init(struct c2c_hists *hists,
			   const char *sort)
{
	__hists__init(&hists->hists, &hists->list);

	/*
	 * Initialize only with sort fields, we need to resort
	 * later anyway, and that's where we add output fields
	 * as well.
	 */
	perf_hpp_list__init(&hists->list);

	return hpp_list__parse(&hists->list, NULL, sort);
}

__maybe_unused
static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
			     const char *output,
			     const char *sort)
{
	perf_hpp__reset_output_field(&c2c_hists->list);
	return hpp_list__parse(&c2c_hists->list, output, sort);
}

static int perf_c2c__report(int argc, const char **argv)
{
	struct perf_session *session;
	struct perf_data_file file = {
		.mode = PERF_DATA_MODE_READ,
	};
	const struct option c2c_options[] = {
	OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
		   "file", "vmlinux pathname"),
	OPT_INCR('v', "verbose", &verbose,
		 "be more verbose (show counter open errors, etc)"),
	OPT_STRING('i', "input", &input_name, "file",
		   "the input file to process"),
	OPT_END()
	};
	int err = 0;

	argc = parse_options(argc, argv, c2c_options, report_c2c_usage,
			     PARSE_OPT_STOP_AT_NON_OPTION);
	if (!argc)
		usage_with_options(report_c2c_usage, c2c_options);

	file.path = input_name;

	err = c2c_hists__init(&c2c.hists, "dcacheline");
	if (err) {
		pr_debug("Failed to initialize hists\n");
		goto out;
	}

	session = perf_session__new(&file, 0, &c2c.tool);
	if (session == NULL) {
		pr_debug("No memory for session\n");
		goto out;
	}

	if (symbol__init(&session->header.env) < 0)
		goto out_session;

	/* No pipe support at the moment. */
	if (perf_data_file__is_pipe(session->file)) {
		pr_debug("No pipe support at the moment.\n");
		goto out_session;
	}

out_session:
	perf_session__delete(session);
out:
	return err;
}

static int parse_record_events(const struct option *opt __maybe_unused,
			       const char *str, int unset __maybe_unused)
{
	bool *event_set = (bool *) opt->value;

	*event_set = true;
	return perf_mem_events__parse(str);
}


static const char * const __usage_record[] = {
	"perf c2c record [<options>] [<command>]",
	"perf c2c record [<options>] -- <command> [<options>]",
	NULL
};

static const char * const *record_mem_usage = __usage_record;

static int perf_c2c__record(int argc, const char **argv)
{
	int rec_argc, i = 0, j;
	const char **rec_argv;
	int ret;
	bool all_user = false, all_kernel = false;
	bool event_set = false;
	struct option options[] = {
	OPT_CALLBACK('e', "event", &event_set, "event",
		     "event selector. Use 'perf mem record -e list' to list available events",
		     parse_record_events),
	OPT_INCR('v', "verbose", &verbose,
		 "be more verbose (show counter open errors, etc)"),
	OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"),
	OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"),
	OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"),
	OPT_END()
	};

	if (perf_mem_events__init()) {
		pr_err("failed: memory events not supported\n");
		return -1;
	}

	argc = parse_options(argc, argv, options, record_mem_usage,
			     PARSE_OPT_KEEP_UNKNOWN);

	rec_argc = argc + 10; /* max number of arguments */
	rec_argv = calloc(rec_argc + 1, sizeof(char *));
	if (!rec_argv)
		return -1;

	rec_argv[i++] = "record";

	if (!event_set) {
		perf_mem_events[PERF_MEM_EVENTS__LOAD].record  = true;
		perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
	}

	if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
		rec_argv[i++] = "-W";

	rec_argv[i++] = "-d";
	rec_argv[i++] = "--sample-cpu";

	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
		if (!perf_mem_events[j].record)
			continue;

		if (!perf_mem_events[j].supported) {
			pr_err("failed: event '%s' not supported\n",
			       perf_mem_events[j].name);
			return -1;
		}

		rec_argv[i++] = "-e";
		rec_argv[i++] = perf_mem_events__name(j);
	};

	if (all_user)
		rec_argv[i++] = "--all-user";

	if (all_kernel)
		rec_argv[i++] = "--all-kernel";

	for (j = 0; j < argc; j++, i++)
		rec_argv[i] = argv[j];

	if (verbose > 0) {
		pr_debug("calling: ");

		j = 0;

		while (rec_argv[j]) {
			pr_debug("%s ", rec_argv[j]);
			j++;
		}
		pr_debug("\n");
	}

	ret = cmd_record(i, rec_argv, NULL);
	free(rec_argv);
	return ret;
}

int cmd_c2c(int argc, const char **argv, const char *prefix __maybe_unused)
{
	const struct option c2c_options[] = {
	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
	OPT_END()
	};

	argc = parse_options(argc, argv, c2c_options, c2c_usage,
			     PARSE_OPT_STOP_AT_NON_OPTION);

	if (!argc)
		usage_with_options(c2c_usage, c2c_options);

	if (!strncmp(argv[0], "rec", 3)) {
		return perf_c2c__record(argc, argv);
	} else if (!strncmp(argv[0], "rep", 3)) {
		return perf_c2c__report(argc, argv);
	} else {
		usage_with_options(c2c_usage, c2c_options);
	}

	return 0;
}
Commit	Line	Data
7aef3bf3 JO	1	#include <linux/compiler.h>
	2	#include <linux/kernel.h>
	3	#include "util.h"
	4	#include "debug.h"
	5	#include "builtin.h"
	6	#include <subcmd/parse-options.h>
39bcd4a4	7	#include "mem-events.h"
903a6f15 JO	8	#include "session.h"
	9	#include "hist.h"
	10	#include "tool.h"
	11	#include "data.h"
8d3f938d	12	#include "sort.h"
903a6f15	13
c75540e3 JO	14	struct c2c_hists {
	15	struct hists hists;
	16	struct perf_hpp_list list;
	17	};
	18
903a6f15	19	struct perf_c2c {
c75540e3 JO	20	struct perf_tool tool;
c75540e3 JO	21	struct c2c_hists hists;
903a6f15 JO	22	};
	23
	24	static struct perf_c2c c2c;
7aef3bf3 JO	25
7aef3bf3 JO	26	static const char * const c2c_usage[] = {
903a6f15	27	"perf c2c {record\|report}",
7aef3bf3 JO	28	NULL
	29	};
	30
903a6f15 JO	31	static const char * const __usage_report[] = {
	32	"perf c2c report",
	33	NULL
	34	};
	35
	36	static const char * const *report_c2c_usage = __usage_report;
	37
c75540e3 JO	38	#define C2C_HEADER_MAX 2
	39
	40	struct c2c_header {
	41	struct {
	42	const char *text;
	43	int span;
	44	} line[C2C_HEADER_MAX];
	45	};
	46
	47	struct c2c_dimension {
	48	struct c2c_header header;
	49	const char *name;
	50	int width;
8d3f938d	51	struct sort_entry *se;
c75540e3 JO	52
	53	int64_t (cmp)(struct perf_hpp_fmt fmt,
	54	struct hist_entry , struct hist_entry );
	55	int (entry)(struct perf_hpp_fmt fmt, struct perf_hpp *hpp,
	56	struct hist_entry *he);
	57	int (color)(struct perf_hpp_fmt fmt, struct perf_hpp *hpp,
	58	struct hist_entry *he);
	59	};
	60
	61	struct c2c_fmt {
	62	struct perf_hpp_fmt fmt;
	63	struct c2c_dimension *dim;
	64	};
	65
	66	static int c2c_width(struct perf_hpp_fmt *fmt,
	67	struct perf_hpp *hpp __maybe_unused,
	68	struct hists *hists __maybe_unused)
	69	{
	70	struct c2c_fmt *c2c_fmt;
8d3f938d	71	struct c2c_dimension *dim;
c75540e3 JO	72
c75540e3 JO	73	c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
8d3f938d JO	74	dim = c2c_fmt->dim;
	75
	76	return dim->se ? hists__col_len(hists, dim->se->se_width_idx) :
	77	c2c_fmt->dim->width;
c75540e3 JO	78	}
	79
	80	static int c2c_header(struct perf_hpp_fmt fmt, struct perf_hpp hpp,
8d3f938d	81	struct hists hists, int line, int span)
c75540e3	82	{
8d3f938d	83	struct perf_hpp_list *hpp_list = hists->hpp_list;
c75540e3 JO	84	struct c2c_fmt *c2c_fmt;
c75540e3 JO	85	struct c2c_dimension *dim;
8d3f938d JO	86	const char *text = NULL;
8d3f938d JO	87	int width = c2c_width(fmt, hpp, hists);
c75540e3 JO	88
	89	c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	90	dim = c2c_fmt->dim;
	91
8d3f938d JO	92	if (dim->se) {
	93	text = dim->header.line[line].text;
	94	/* Use the last line from sort_entry if not defined. */
	95	if (!text && (line == hpp_list->nr_header_lines - 1))
	96	text = dim->se->se_header;
c75540e3	97	} else {
8d3f938d JO	98	text = dim->header.line[line].text;
	99
	100	if (*span) {
	101	(*span)--;
	102	return 0;
	103	} else {
	104	*span = dim->header.line[line].span;
	105	}
c75540e3 JO	106	}
c75540e3 JO	107
8d3f938d JO	108	if (text == NULL)
	109	text = "";
	110
	111	return scnprintf(hpp->buf, hpp->size, "%*s", width, text);
c75540e3 JO	112	}
	113
	114	static struct c2c_dimension *dimensions[] = {
	115	NULL,
	116	};
	117
	118	static void fmt_free(struct perf_hpp_fmt *fmt)
	119	{
	120	struct c2c_fmt *c2c_fmt;
	121
	122	c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	123	free(c2c_fmt);
	124	}
	125
	126	static bool fmt_equal(struct perf_hpp_fmt a, struct perf_hpp_fmt b)
	127	{
	128	struct c2c_fmt *c2c_a = container_of(a, struct c2c_fmt, fmt);
	129	struct c2c_fmt *c2c_b = container_of(b, struct c2c_fmt, fmt);
	130
	131	return c2c_a->dim == c2c_b->dim;
	132	}
	133
	134	static struct c2c_dimension get_dimension(const char name)
	135	{
	136	unsigned int i;
	137
	138	for (i = 0; dimensions[i]; i++) {
	139	struct c2c_dimension *dim = dimensions[i];
	140
	141	if (!strcmp(dim->name, name))
	142	return dim;
	143	};
	144
	145	return NULL;
	146	}
	147
8d3f938d JO	148	static int c2c_se_entry(struct perf_hpp_fmt fmt, struct perf_hpp hpp,
	149	struct hist_entry *he)
	150	{
	151	struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	152	struct c2c_dimension *dim = c2c_fmt->dim;
	153	size_t len = fmt->user_len;
	154
	155	if (!len)
	156	len = hists__col_len(he->hists, dim->se->se_width_idx);
	157
	158	return dim->se->se_snprintf(he, hpp->buf, hpp->size, len);
	159	}
	160
	161	static int64_t c2c_se_cmp(struct perf_hpp_fmt *fmt,
	162	struct hist_entry a, struct hist_entry b)
	163	{
	164	struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	165	struct c2c_dimension *dim = c2c_fmt->dim;
	166
	167	return dim->se->se_cmp(a, b);
	168	}
	169
	170	static int64_t c2c_se_collapse(struct perf_hpp_fmt *fmt,
	171	struct hist_entry a, struct hist_entry b)
	172	{
	173	struct c2c_fmt *c2c_fmt = container_of(fmt, struct c2c_fmt, fmt);
	174	struct c2c_dimension *dim = c2c_fmt->dim;
	175	int64_t (collapse_fn)(struct hist_entry , struct hist_entry *);
	176
	177	collapse_fn = dim->se->se_collapse ?: dim->se->se_cmp;
	178	return collapse_fn(a, b);
	179	}
	180
c75540e3 JO	181	static struct c2c_fmt get_format(const char name)
	182	{
	183	struct c2c_dimension *dim = get_dimension(name);
	184	struct c2c_fmt *c2c_fmt;
	185	struct perf_hpp_fmt *fmt;
	186
	187	if (!dim)
	188	return NULL;
	189
	190	c2c_fmt = zalloc(sizeof(*c2c_fmt));
	191	if (!c2c_fmt)
	192	return NULL;
	193
	194	c2c_fmt->dim = dim;
	195
	196	fmt = &c2c_fmt->fmt;
	197	INIT_LIST_HEAD(&fmt->list);
	198	INIT_LIST_HEAD(&fmt->sort_list);
	199
8d3f938d JO	200	fmt->cmp = dim->se ? c2c_se_cmp : dim->cmp;
	201	fmt->sort = dim->se ? c2c_se_cmp : dim->cmp;
	202	fmt->entry = dim->se ? c2c_se_entry : dim->entry;
c75540e3 JO	203	fmt->header = c2c_header;
c75540e3 JO	204	fmt->width = c2c_width;
8d3f938d	205	fmt->collapse = dim->se ? c2c_se_collapse : dim->cmp;
c75540e3 JO	206	fmt->equal = fmt_equal;
	207	fmt->free = fmt_free;
	208
	209	return c2c_fmt;
	210	}
	211
	212	static int c2c_hists__init_output(struct perf_hpp_list hpp_list, char name)
	213	{
	214	struct c2c_fmt *c2c_fmt = get_format(name);
	215
5f2eca83 JO	216	if (!c2c_fmt) {
	217	reset_dimensions();
	218	return output_field_add(hpp_list, name);
	219	}
c75540e3 JO	220
	221	perf_hpp_list__column_register(hpp_list, &c2c_fmt->fmt);
	222	return 0;
	223	}
	224
	225	static int c2c_hists__init_sort(struct perf_hpp_list hpp_list, char name)
	226	{
	227	struct c2c_fmt *c2c_fmt = get_format(name);
	228
5f2eca83 JO	229	if (!c2c_fmt) {
	230	reset_dimensions();
	231	return sort_dimension__add(hpp_list, name, NULL, 0);
	232	}
c75540e3 JO	233
	234	perf_hpp_list__register_sort_field(hpp_list, &c2c_fmt->fmt);
	235	return 0;
	236	}
	237
	238	#define PARSE_LIST(_list, _fn) \
	239	do { \
	240	char tmp, tok; \
	241	ret = 0; \
	242	\
	243	if (!_list) \
	244	break; \
	245	\
	246	for (tok = strtok_r((char *)_list, ", ", &tmp); \
	247	tok; tok = strtok_r(NULL, ", ", &tmp)) { \
	248	ret = _fn(hpp_list, tok); \
	249	if (ret == -EINVAL) { \
	250	error("Invalid --fields key: `%s'", tok); \
	251	break; \
	252	} else if (ret == -ESRCH) { \
	253	error("Unknown --fields key: `%s'", tok); \
	254	break; \
	255	} \
	256	} \
	257	} while (0)
	258
	259	static int hpp_list__parse(struct perf_hpp_list *hpp_list,
	260	const char *output_,
	261	const char *sort_)
	262	{
	263	char *output = output_ ? strdup(output_) : NULL;
	264	char *sort = sort_ ? strdup(sort_) : NULL;
	265	int ret;
	266
	267	PARSE_LIST(output, c2c_hists__init_output);
	268	PARSE_LIST(sort, c2c_hists__init_sort);
	269
	270	/* copy sort keys to output fields */
	271	perf_hpp__setup_output_field(hpp_list);
	272
	273	/*
	274	* We dont need other sorting keys other than those
	275	* we already specified. It also really slows down
	276	* the processing a lot with big number of output
	277	* fields, so switching this off for c2c.
	278	*/
	279
	280	#if 0
	281	/* and then copy output fields to sort keys */
	282	perf_hpp__append_sort_keys(&hists->list);
	283	#endif
	284
	285	free(output);
	286	free(sort);
	287	return ret;
	288	}
	289
	290	static int c2c_hists__init(struct c2c_hists *hists,
	291	const char *sort)
	292	{
	293	__hists__init(&hists->hists, &hists->list);
	294
	295	/*
	296	* Initialize only with sort fields, we need to resort
297	* later anyway, and that's where we add output fields
298	* as well.
299	*/
300	perf_hpp_list__init(&hists->list);
301
302	return hpp_list__parse(&hists->list, NULL, sort);
303	}
304
305	__maybe_unused
306	static int c2c_hists__reinit(struct c2c_hists *c2c_hists,
307	const char *output,
308	const char *sort)
309	{
310	perf_hpp__reset_output_field(&c2c_hists->list);
311	return hpp_list__parse(&c2c_hists->list, output, sort);
312	}
313
903a6f15 JO	314	static int perf_c2c__report(int argc, const char **argv)
	315	{
	316	struct perf_session *session;
	317	struct perf_data_file file = {
	318	.mode = PERF_DATA_MODE_READ,
	319	};
	320	const struct option c2c_options[] = {
	321	OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
	322	"file", "vmlinux pathname"),
	323	OPT_INCR('v', "verbose", &verbose,
	324	"be more verbose (show counter open errors, etc)"),
	325	OPT_STRING('i', "input", &input_name, "file",
	326	"the input file to process"),
	327	OPT_END()
	328	};
	329	int err = 0;
	330
	331	argc = parse_options(argc, argv, c2c_options, report_c2c_usage,
	332	PARSE_OPT_STOP_AT_NON_OPTION);
	333	if (!argc)
	334	usage_with_options(report_c2c_usage, c2c_options);
	335
	336	file.path = input_name;
	337
c75540e3 JO	338	err = c2c_hists__init(&c2c.hists, "dcacheline");
	339	if (err) {
	340	pr_debug("Failed to initialize hists\n");
	341	goto out;
	342	}
	343
903a6f15 JO	344	session = perf_session__new(&file, 0, &c2c.tool);
	345	if (session == NULL) {
	346	pr_debug("No memory for session\n");
	347	goto out;
	348	}
	349
	350	if (symbol__init(&session->header.env) < 0)
	351	goto out_session;
	352
	353	/* No pipe support at the moment. */
	354	if (perf_data_file__is_pipe(session->file)) {
	355	pr_debug("No pipe support at the moment.\n");
	356	goto out_session;
	357	}
	358
	359	out_session:
	360	perf_session__delete(session);
	361	out:
	362	return err;
	363	}
	364
39bcd4a4 JO	365	static int parse_record_events(const struct option *opt __maybe_unused,
	366	const char *str, int unset __maybe_unused)
	367	{
	368	bool event_set = (bool ) opt->value;
	369
	370	*event_set = true;
	371	return perf_mem_events__parse(str);
	372	}
	373
	374
	375	static const char * const __usage_record[] = {
	376	"perf c2c record [<options>] [<command>]",
	377	"perf c2c record [<options>] -- <command> [<options>]",
	378	NULL
	379	};
	380
	381	static const char * const *record_mem_usage = __usage_record;
	382
	383	static int perf_c2c__record(int argc, const char **argv)
	384	{
	385	int rec_argc, i = 0, j;
	386	const char **rec_argv;
	387	int ret;
	388	bool all_user = false, all_kernel = false;
	389	bool event_set = false;
	390	struct option options[] = {
	391	OPT_CALLBACK('e', "event", &event_set, "event",
	392	"event selector. Use 'perf mem record -e list' to list available events",
	393	parse_record_events),
	394	OPT_INCR('v', "verbose", &verbose,
	395	"be more verbose (show counter open errors, etc)"),
	396	OPT_BOOLEAN('u', "all-user", &all_user, "collect only user level data"),
	397	OPT_BOOLEAN('k', "all-kernel", &all_kernel, "collect only kernel level data"),
	398	OPT_UINTEGER('l', "ldlat", &perf_mem_events__loads_ldlat, "setup mem-loads latency"),
	399	OPT_END()
	400	};
	401
	402	if (perf_mem_events__init()) {
	403	pr_err("failed: memory events not supported\n");
	404	return -1;
	405	}
	406
	407	argc = parse_options(argc, argv, options, record_mem_usage,
	408	PARSE_OPT_KEEP_UNKNOWN);
	409
	410	rec_argc = argc + 10; /* max number of arguments */
	411	rec_argv = calloc(rec_argc + 1, sizeof(char *));
	412	if (!rec_argv)
	413	return -1;
	414
	415	rec_argv[i++] = "record";
	416
	417	if (!event_set) {
	418	perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
	419	perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
	420	}
	421
	422	if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
	423	rec_argv[i++] = "-W";
	424
	425	rec_argv[i++] = "-d";
	426	rec_argv[i++] = "--sample-cpu";
	427
	428	for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
429	if (!perf_mem_events[j].record)
430	continue;
431
432	if (!perf_mem_events[j].supported) {
433	pr_err("failed: event '%s' not supported\n",
434	perf_mem_events[j].name);
435	return -1;
436	}
437
438	rec_argv[i++] = "-e";
439	rec_argv[i++] = perf_mem_events__name(j);
440	};
441
442	if (all_user)
443	rec_argv[i++] = "--all-user";
444
445	if (all_kernel)
446	rec_argv[i++] = "--all-kernel";
447
448	for (j = 0; j < argc; j++, i++)
449	rec_argv[i] = argv[j];
450
451	if (verbose > 0) {
452	pr_debug("calling: ");
453
454	j = 0;
455
456	while (rec_argv[j]) {
457	pr_debug("%s ", rec_argv[j]);
458	j++;
459	}
460	pr_debug("\n");
461	}
462
463	ret = cmd_record(i, rec_argv, NULL);
464	free(rec_argv);
465	return ret;
466	}
467
7aef3bf3 JO	468	int cmd_c2c(int argc, const char *argv, const char prefix __maybe_unused)
	469	{
	470	const struct option c2c_options[] = {
	471	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
	472	OPT_END()
	473	};
	474
	475	argc = parse_options(argc, argv, c2c_options, c2c_usage,
	476	PARSE_OPT_STOP_AT_NON_OPTION);
39bcd4a4 JO	477
	478	if (!argc)
	479	usage_with_options(c2c_usage, c2c_options);
	480
	481	if (!strncmp(argv[0], "rec", 3)) {
	482	return perf_c2c__record(argc, argv);
903a6f15 JO	483	} else if (!strncmp(argv[0], "rep", 3)) {
903a6f15 JO	484	return perf_c2c__report(argc, argv);
39bcd4a4 JO	485	} else {
	486	usage_with_options(c2c_usage, c2c_options);
	487	}
	488
7aef3bf3 JO	489	return 0;
7aef3bf3 JO	490	}