tools/perf/builtin-annotate.c - kernel/msm-4.9 - Gitiles

 /*
  * builtin-annotate.c
  *
  * Builtin annotate command: Analyze the perf.data input file,
  * look up and read DSOs and symbol information and display
  * a histogram of results, along various sorting keys.
  */
 #include "builtin.h"

 #include "util/util.h"

 #include "util/color.h"
 #include <linux/list.h>
 #include "util/cache.h"
 #include <linux/rbtree.h>
 #include "util/symbol.h"

 #include "perf.h"
 #include "util/debug.h"

 #include "util/event.h"
 #include "util/parse-options.h"
 #include "util/parse-events.h"
 #include "util/thread.h"
 #include "util/sort.h"
 #include "util/hist.h"
 #include "util/session.h"

 static char		const *input_name = "perf.data";

 static bool		force;

 static bool		full_paths;

 static bool		print_line;

 static const char *sym_hist_filter;

 static int hists__add_entry(struct hists *self, struct addr_location *al)
 {
 	struct hist_entry *he;

 	if (sym_hist_filter != NULL &&
 	    (al->sym == NULL || strcmp(sym_hist_filter, al->sym->name) != 0)) {
 		/* We're only interested in a symbol named sym_hist_filter */
 		if (al->sym != NULL) {
 			rb_erase(&al->sym->rb_node,
 				 &al->map->dso->symbols[al->map->type]);
 			symbol__delete(al->sym);
 		}
 		return 0;
 	}

 	he = __hists__add_entry(self, al, NULL, 1);
 	if (he == NULL)
 		return -ENOMEM;

 	return hist_entry__inc_addr_samples(he, al->addr);
 }

 static int process_sample_event(event_t *event, struct perf_session *session)
 {
 	struct addr_location al;

 	dump_printf("(IP, %d): %d: %#Lx\n", event->header.misc,
 		    event->ip.pid, event->ip.ip);

 	if (event__preprocess_sample(event, session, &al, NULL) < 0) {
 		pr_warning("problem processing %d event, skipping it.\n",
 			   event->header.type);
 		return -1;
 	}

 	if (!al.filtered && hists__add_entry(&session->hists, &al)) {
 		pr_warning("problem incrementing symbol count, "
 			   "skipping event\n");
 		return -1;
 	}

 	return 0;
 }

 static int objdump_line__print(struct objdump_line *self,
 			       struct list_head *head,
 			       struct hist_entry *he, u64 len)
 {
 	struct symbol *sym = he->ms.sym;
 	static const char *prev_line;
 	static const char *prev_color;

 	if (self->offset != -1) {
 		const char *path = NULL;
 		unsigned int hits = 0;
 		double percent = 0.0;
 		const char *color;
 		struct sym_priv *priv = symbol__priv(sym);
 		struct sym_ext *sym_ext = priv->ext;
 		struct sym_hist *h = priv->hist;
 		s64 offset = self->offset;
 		struct objdump_line *next = objdump__get_next_ip_line(head, self);

 		while (offset < (s64)len &&
 		       (next == NULL || offset < next->offset)) {
 			if (sym_ext) {
 				if (path == NULL)
 					path = sym_ext[offset].path;
 				percent += sym_ext[offset].percent;
 			} else
 				hits += h->ip[offset];

 			++offset;
 		}

 		if (sym_ext == NULL && h->sum)
 			percent = 100.0 * hits / h->sum;

 		color = get_percent_color(percent);

 		/*
 		 * Also color the filename and line if needed, with
 		 * the same color than the percentage. Don't print it
 		 * twice for close colored ip with the same filename:line
 		 */
 		if (path) {
 			if (!prev_line || strcmp(prev_line, path)
 				       || color != prev_color) {
 				color_fprintf(stdout, color, " %s", path);
 				prev_line = path;
 				prev_color = color;
 			}
 		}

 		color_fprintf(stdout, color, " %7.2f", percent);
 		printf(" :	");
 		color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", self->line);
 	} else {
 		if (!*self->line)
 			printf("         :\n");
 		else
 			printf("         :	%s\n", self->line);
 	}

 	return 0;
 }

 static struct rb_root root_sym_ext;

 static void insert_source_line(struct sym_ext *sym_ext)
 {
 	struct sym_ext *iter;
 	struct rb_node **p = &root_sym_ext.rb_node;
 	struct rb_node *parent = NULL;

 	while (*p != NULL) {
 		parent = *p;
 		iter = rb_entry(parent, struct sym_ext, node);

 		if (sym_ext->percent > iter->percent)
 			p = &(*p)->rb_left;
 		else
 			p = &(*p)->rb_right;
 	}

 	rb_link_node(&sym_ext->node, parent, p);
 	rb_insert_color(&sym_ext->node, &root_sym_ext);
 }

 static void free_source_line(struct hist_entry *he, int len)
 {
 	struct sym_priv *priv = symbol__priv(he->ms.sym);
 	struct sym_ext *sym_ext = priv->ext;
 	int i;

 	if (!sym_ext)
 		return;

 	for (i = 0; i < len; i++)
 		free(sym_ext[i].path);
 	free(sym_ext);

 	priv->ext = NULL;
 	root_sym_ext = RB_ROOT;
 }

 /* Get the filename:line for the colored entries */
 static void
 get_source_line(struct hist_entry *he, int len, const char *filename)
 {
 	struct symbol *sym = he->ms.sym;
 	u64 start;
 	int i;
 	char cmd[PATH_MAX * 2];
 	struct sym_ext *sym_ext;
 	struct sym_priv *priv = symbol__priv(sym);
 	struct sym_hist *h = priv->hist;

 	if (!h->sum)
 		return;

 	sym_ext = priv->ext = calloc(len, sizeof(struct sym_ext));
 	if (!priv->ext)
 		return;

 	start = he->ms.map->unmap_ip(he->ms.map, sym->start);

 	for (i = 0; i < len; i++) {
 		char *path = NULL;
 		size_t line_len;
 		u64 offset;
 		FILE *fp;

 		sym_ext[i].percent = 100.0 * h->ip[i] / h->sum;
 		if (sym_ext[i].percent <= 0.5)
 			continue;

 		offset = start + i;
 		sprintf(cmd, "addr2line -e %s %016llx", filename, offset);
 		fp = popen(cmd, "r");
 		if (!fp)
 			continue;

 		if (getline(&path, &line_len, fp) < 0 || !line_len)
 			goto next;

 		sym_ext[i].path = malloc(sizeof(char) * line_len + 1);
 		if (!sym_ext[i].path)
 			goto next;

 		strcpy(sym_ext[i].path, path);
 		insert_source_line(&sym_ext[i]);

 	next:
 		pclose(fp);
 	}
 }

 static void print_summary(const char *filename)
 {
 	struct sym_ext *sym_ext;
 	struct rb_node *node;

 	printf("\nSorted summary for file %s\n", filename);
 	printf("----------------------------------------------\n\n");

 	if (RB_EMPTY_ROOT(&root_sym_ext)) {
 		printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
 		return;
 	}

 	node = rb_first(&root_sym_ext);
 	while (node) {
 		double percent;
 		const char *color;
 		char *path;

 		sym_ext = rb_entry(node, struct sym_ext, node);
 		percent = sym_ext->percent;
 		color = get_percent_color(percent);
 		path = sym_ext->path;

 		color_fprintf(stdout, color, " %7.2f %s", percent, path);
 		node = rb_next(node);
 	}
 }

 static void hist_entry__print_hits(struct hist_entry *self)
 {
 	struct symbol *sym = self->ms.sym;
 	struct sym_priv *priv = symbol__priv(sym);
 	struct sym_hist *h = priv->hist;
 	u64 len = sym->end - sym->start, offset;

 	for (offset = 0; offset < len; ++offset)
 		if (h->ip[offset] != 0)
 			printf("%*Lx: %Lu\n", BITS_PER_LONG / 2,
 			       sym->start + offset, h->ip[offset]);
 	printf("%*s: %Lu\n", BITS_PER_LONG / 2, "h->sum", h->sum);
 }

 static void annotate_sym(struct hist_entry *he)
 {
 	struct map *map = he->ms.map;
 	struct dso *dso = map->dso;
 	struct symbol *sym = he->ms.sym;
 	const char *filename = dso->long_name, *d_filename;
 	u64 len;
 	LIST_HEAD(head);
 	struct objdump_line *pos, *n;

 	if (hist_entry__annotate(he, &head) < 0)
 		return;

 	if (full_paths)
 		d_filename = filename;
 	else
 		d_filename = basename(filename);

 	len = sym->end - sym->start;

 	if (print_line) {
 		get_source_line(he, len, filename);
 		print_summary(filename);
 	}

 	printf("\n\n------------------------------------------------\n");
 	printf(" Percent |	Source code & Disassembly of %s\n", d_filename);
 	printf("------------------------------------------------\n");

 	if (verbose)
 		hist_entry__print_hits(he);

 	list_for_each_entry_safe(pos, n, &head, node) {
 		objdump_line__print(pos, &head, he, len);
 		list_del(&pos->node);
 		objdump_line__free(pos);
 	}

 	if (print_line)
 		free_source_line(he, len);
 }

 static void hists__find_annotations(struct hists *self)
 {
 	struct rb_node *nd;

 	for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
 		struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
 		struct sym_priv *priv;

 		if (he->ms.sym == NULL)
 			continue;

 		priv = symbol__priv(he->ms.sym);
 		if (priv->hist == NULL)
 			continue;

 		annotate_sym(he);
 		/*
 		 * Since we have a hist_entry per IP for the same symbol, free
 		 * he->ms.sym->hist to signal we already processed this symbol.
 		 */
 		free(priv->hist);
 		priv->hist = NULL;
 	}
 }

 static struct perf_event_ops event_ops = {
 	.sample	= process_sample_event,
 	.mmap	= event__process_mmap,
 	.comm	= event__process_comm,
 	.fork	= event__process_task,
 };

 static int __cmd_annotate(void)
 {
 	int ret;
 	struct perf_session *session;

 	session = perf_session__new(input_name, O_RDONLY, force, false);
 	if (session == NULL)
 		return -ENOMEM;

 	ret = perf_session__process_events(session, &event_ops);
 	if (ret)
 		goto out_delete;

 	if (dump_trace) {
 		perf_session__fprintf_nr_events(session, stdout);
 		goto out_delete;
 	}

 	if (verbose > 3)
 		perf_session__fprintf(session, stdout);

 	if (verbose > 2)
 		perf_session__fprintf_dsos(session, stdout);

 	hists__collapse_resort(&session->hists);
 	hists__output_resort(&session->hists);
 	hists__find_annotations(&session->hists);
 out_delete:
 	perf_session__delete(session);

 	return ret;
 }

 static const char * const annotate_usage[] = {
 	"perf annotate [<options>] <command>",
 	NULL
 };

 static const struct option options[] = {
 	OPT_STRING('i', "input", &input_name, "file",
 		    "input file name"),
 	OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
 		   "only consider symbols in these dsos"),
 	OPT_STRING('s', "symbol", &sym_hist_filter, "symbol",
 		    "symbol to annotate"),
 	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
 	OPT_INCR('v', "verbose", &verbose,
 		    "be more verbose (show symbol address, etc)"),
 	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 		    "dump raw trace in ASCII"),
 	OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
 		   "file", "vmlinux pathname"),
 	OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
 		    "load module symbols - WARNING: use only with -k and LIVE kernel"),
 	OPT_BOOLEAN('l', "print-line", &print_line,
 		    "print matching source lines (may be slow)"),
 	OPT_BOOLEAN('P', "full-paths", &full_paths,
 		    "Don't shorten the displayed pathnames"),
 	OPT_END()
 };

 int cmd_annotate(int argc, const char **argv, const char *prefix __used)
 {
 	argc = parse_options(argc, argv, options, annotate_usage, 0);

 	symbol_conf.priv_size = sizeof(struct sym_priv);
 	symbol_conf.try_vmlinux_path = true;

 	if (symbol__init() < 0)
 		return -1;

 	setup_sorting(annotate_usage, options);

 	if (argc) {
 		/*
 		 * Special case: if there's an argument left then assume tha
 		 * it's a symbol filter:
 		 */
 		if (argc > 1)
 			usage_with_options(annotate_usage, options);

 		sym_hist_filter = argv[0];
 	}

 	setup_pager();

 	if (field_sep && *field_sep == '.') {
 		pr_err("'.' is the only non valid --field-separator argument\n");
 		return -1;
 	}

 	return __cmd_annotate();
 }
	/*
	* builtin-annotate.c
	*
	* Builtin annotate command: Analyze the perf.data input file,
	* look up and read DSOs and symbol information and display
	* a histogram of results, along various sorting keys.
	*/
	#include "builtin.h"

	#include "util/util.h"

	#include "util/color.h"
	#include <linux/list.h>
	#include "util/cache.h"
	#include <linux/rbtree.h>
	#include "util/symbol.h"

	#include "perf.h"
	#include "util/debug.h"

	#include "util/event.h"
	#include "util/parse-options.h"
	#include "util/parse-events.h"
	#include "util/thread.h"
	#include "util/sort.h"
	#include "util/hist.h"
	#include "util/session.h"

	static char const *input_name = "perf.data";

	static bool force;

	static bool full_paths;

	static bool print_line;

	static const char *sym_hist_filter;

	static int hists__add_entry(struct hists self, struct addr_location al)
	{
	struct hist_entry *he;

	if (sym_hist_filter != NULL &&
	(al->sym == NULL \|\| strcmp(sym_hist_filter, al->sym->name) != 0)) {
	/* We're only interested in a symbol named sym_hist_filter */
	if (al->sym != NULL) {
	rb_erase(&al->sym->rb_node,
	&al->map->dso->symbols[al->map->type]);
	symbol__delete(al->sym);
	}
	return 0;
	}

	he = __hists__add_entry(self, al, NULL, 1);
	if (he == NULL)
	return -ENOMEM;

	return hist_entry__inc_addr_samples(he, al->addr);
	}

	static int process_sample_event(event_t event, struct perf_session session)
	{
	struct addr_location al;

	dump_printf("(IP, %d): %d: %#Lx\n", event->header.misc,
	event->ip.pid, event->ip.ip);

	if (event__preprocess_sample(event, session, &al, NULL) < 0) {
	pr_warning("problem processing %d event, skipping it.\n",
	event->header.type);
	return -1;
	}

	if (!al.filtered && hists__add_entry(&session->hists, &al)) {
	pr_warning("problem incrementing symbol count, "
	"skipping event\n");
	return -1;
	}

	return 0;
	}

	static int objdump_line__print(struct objdump_line *self,
	struct list_head *head,
	struct hist_entry *he, u64 len)
	{
	struct symbol *sym = he->ms.sym;
	static const char *prev_line;
	static const char *prev_color;

	if (self->offset != -1) {
	const char *path = NULL;
	unsigned int hits = 0;
	double percent = 0.0;
	const char *color;
	struct sym_priv *priv = symbol__priv(sym);
	struct sym_ext *sym_ext = priv->ext;
	struct sym_hist *h = priv->hist;
	s64 offset = self->offset;
	struct objdump_line *next = objdump__get_next_ip_line(head, self);

	while (offset < (s64)len &&
	(next == NULL \|\| offset < next->offset)) {
	if (sym_ext) {
	if (path == NULL)
	path = sym_ext[offset].path;
	percent += sym_ext[offset].percent;
	} else
	hits += h->ip[offset];

	++offset;
	}

	if (sym_ext == NULL && h->sum)
	percent = 100.0 * hits / h->sum;

	color = get_percent_color(percent);

	/*
	* Also color the filename and line if needed, with
	* the same color than the percentage. Don't print it
	* twice for close colored ip with the same filename:line
	*/
	if (path) {
	if (!prev_line \|\| strcmp(prev_line, path)
	\|\| color != prev_color) {
	color_fprintf(stdout, color, " %s", path);
	prev_line = path;
	prev_color = color;
	}
	}

	color_fprintf(stdout, color, " %7.2f", percent);
	printf(" : ");
	color_fprintf(stdout, PERF_COLOR_BLUE, "%s\n", self->line);
	} else {
	if (!*self->line)
	printf(" :\n");
	else
	printf(" : %s\n", self->line);
	}

	return 0;
	}

	static struct rb_root root_sym_ext;

	static void insert_source_line(struct sym_ext *sym_ext)
	{
	struct sym_ext *iter;
	struct rb_node **p = &root_sym_ext.rb_node;
	struct rb_node *parent = NULL;

	while (*p != NULL) {
	parent = *p;
	iter = rb_entry(parent, struct sym_ext, node);

	if (sym_ext->percent > iter->percent)
	p = &(*p)->rb_left;
	else
	p = &(*p)->rb_right;
	}

	rb_link_node(&sym_ext->node, parent, p);
	rb_insert_color(&sym_ext->node, &root_sym_ext);
	}

	static void free_source_line(struct hist_entry *he, int len)
	{
	struct sym_priv *priv = symbol__priv(he->ms.sym);
	struct sym_ext *sym_ext = priv->ext;
	int i;

	if (!sym_ext)
	return;

	for (i = 0; i < len; i++)
	free(sym_ext[i].path);
	free(sym_ext);

	priv->ext = NULL;
	root_sym_ext = RB_ROOT;
	}

	/* Get the filename:line for the colored entries */
	static void
	get_source_line(struct hist_entry he, int len, const char filename)
	{
	struct symbol *sym = he->ms.sym;
	u64 start;
	int i;
	char cmd[PATH_MAX * 2];
	struct sym_ext *sym_ext;
	struct sym_priv *priv = symbol__priv(sym);
	struct sym_hist *h = priv->hist;

	if (!h->sum)
	return;

	sym_ext = priv->ext = calloc(len, sizeof(struct sym_ext));
	if (!priv->ext)
	return;

	start = he->ms.map->unmap_ip(he->ms.map, sym->start);

	for (i = 0; i < len; i++) {
	char *path = NULL;
	size_t line_len;
	u64 offset;
	FILE *fp;

	sym_ext[i].percent = 100.0 * h->ip[i] / h->sum;
	if (sym_ext[i].percent <= 0.5)
	continue;

	offset = start + i;
	sprintf(cmd, "addr2line -e %s %016llx", filename, offset);
	fp = popen(cmd, "r");
	if (!fp)
	continue;

	if (getline(&path, &line_len, fp) < 0 \|\| !line_len)
	goto next;

	sym_ext[i].path = malloc(sizeof(char) * line_len + 1);
	if (!sym_ext[i].path)
	goto next;

	strcpy(sym_ext[i].path, path);
	insert_source_line(&sym_ext[i]);

	next:
	pclose(fp);
	}
	}

	static void print_summary(const char *filename)
	{
	struct sym_ext *sym_ext;
	struct rb_node *node;

	printf("\nSorted summary for file %s\n", filename);
	printf("----------------------------------------------\n\n");

	if (RB_EMPTY_ROOT(&root_sym_ext)) {
	printf(" Nothing higher than %1.1f%%\n", MIN_GREEN);
	return;
	}

	node = rb_first(&root_sym_ext);
	while (node) {
	double percent;
	const char *color;
	char *path;

	sym_ext = rb_entry(node, struct sym_ext, node);
	percent = sym_ext->percent;
	color = get_percent_color(percent);
	path = sym_ext->path;

	color_fprintf(stdout, color, " %7.2f %s", percent, path);
	node = rb_next(node);
	}
	}

	static void hist_entry__print_hits(struct hist_entry *self)
	{
	struct symbol *sym = self->ms.sym;
	struct sym_priv *priv = symbol__priv(sym);
	struct sym_hist *h = priv->hist;
	u64 len = sym->end - sym->start, offset;

	for (offset = 0; offset < len; ++offset)
	if (h->ip[offset] != 0)
	printf("%*Lx: %Lu\n", BITS_PER_LONG / 2,
	sym->start + offset, h->ip[offset]);
	printf("%*s: %Lu\n", BITS_PER_LONG / 2, "h->sum", h->sum);
	}

	static void annotate_sym(struct hist_entry *he)
	{
	struct map *map = he->ms.map;
	struct dso *dso = map->dso;
	struct symbol *sym = he->ms.sym;
	const char filename = dso->long_name, d_filename;
	u64 len;
	LIST_HEAD(head);
	struct objdump_line pos, n;

	if (hist_entry__annotate(he, &head) < 0)
	return;

	if (full_paths)
	d_filename = filename;
	else
	d_filename = basename(filename);

	len = sym->end - sym->start;

	if (print_line) {
	get_source_line(he, len, filename);
	print_summary(filename);
	}

	printf("\n\n------------------------------------------------\n");
	printf(" Percent \| Source code & Disassembly of %s\n", d_filename);
	printf("------------------------------------------------\n");

	if (verbose)
	hist_entry__print_hits(he);

	list_for_each_entry_safe(pos, n, &head, node) {
	objdump_line__print(pos, &head, he, len);
	list_del(&pos->node);
	objdump_line__free(pos);
	}

	if (print_line)
	free_source_line(he, len);
	}

	static void hists__find_annotations(struct hists *self)
	{
	struct rb_node *nd;

	for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
	struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
	struct sym_priv *priv;

	if (he->ms.sym == NULL)
	continue;

	priv = symbol__priv(he->ms.sym);
	if (priv->hist == NULL)
	continue;

	annotate_sym(he);
	/*
	* Since we have a hist_entry per IP for the same symbol, free
	* he->ms.sym->hist to signal we already processed this symbol.
	*/
	free(priv->hist);
	priv->hist = NULL;
	}
	}

	static struct perf_event_ops event_ops = {
	.sample = process_sample_event,
	.mmap = event__process_mmap,
	.comm = event__process_comm,
	.fork = event__process_task,
	};

	static int __cmd_annotate(void)
	{
	int ret;
	struct perf_session *session;

	session = perf_session__new(input_name, O_RDONLY, force, false);
	if (session == NULL)
	return -ENOMEM;

	ret = perf_session__process_events(session, &event_ops);
	if (ret)
	goto out_delete;

	if (dump_trace) {
	perf_session__fprintf_nr_events(session, stdout);
	goto out_delete;
	}

	if (verbose > 3)
	perf_session__fprintf(session, stdout);

	if (verbose > 2)
	perf_session__fprintf_dsos(session, stdout);

	hists__collapse_resort(&session->hists);
	hists__output_resort(&session->hists);
	hists__find_annotations(&session->hists);
	out_delete:
	perf_session__delete(session);

	return ret;
	}

	static const char * const annotate_usage[] = {
	"perf annotate [<options>] <command>",
	NULL
	};

	static const struct option options[] = {
	OPT_STRING('i', "input", &input_name, "file",
	"input file name"),
	OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
	"only consider symbols in these dsos"),
	OPT_STRING('s', "symbol", &sym_hist_filter, "symbol",
	"symbol to annotate"),
	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
	OPT_INCR('v', "verbose", &verbose,
	"be more verbose (show symbol address, etc)"),
	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
	"dump raw trace in ASCII"),
	OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
	"file", "vmlinux pathname"),
	OPT_BOOLEAN('m', "modules", &symbol_conf.use_modules,
	"load module symbols - WARNING: use only with -k and LIVE kernel"),
	OPT_BOOLEAN('l', "print-line", &print_line,
	"print matching source lines (may be slow)"),
	OPT_BOOLEAN('P', "full-paths", &full_paths,
	"Don't shorten the displayed pathnames"),
	OPT_END()
	};

	int cmd_annotate(int argc, const char *argv, const char prefix __used)
	{
	argc = parse_options(argc, argv, options, annotate_usage, 0);

	symbol_conf.priv_size = sizeof(struct sym_priv);
	symbol_conf.try_vmlinux_path = true;

	if (symbol__init() < 0)
	return -1;

	setup_sorting(annotate_usage, options);

	if (argc) {
	/*
	* Special case: if there's an argument left then assume tha
	* it's a symbol filter:
	*/
	if (argc > 1)
	usage_with_options(annotate_usage, options);

	sym_hist_filter = argv[0];
	}

	setup_pager();

	if (field_sep && *field_sep == '.') {
	pr_err("'.' is the only non valid --field-separator argument\n");
	return -1;
	}

	return __cmd_annotate();
	}