perf top: Introduce --hide_{user,kernel}_symbols (8ffcda17) · Commits · e / devices / android_kernel_teracube_emerald

tools/perf/builtin-top.c

+40 −2

Original line number	Original line	Diff line number	Diff line
	@@ -76,6 +76,9 @@ static int delay_secs = 2;
	static int zero = 0;		static int zero = 0;
	static int dump_symtab = 0;		static int dump_symtab = 0;

			static bool hide_kernel_symbols = false;
			static bool hide_user_symbols = false;

	/*		/*
	* Source		* Source
	*/		*/
	@@ -104,6 +107,7 @@ struct sym_entry {
	unsigned long snap_count;		unsigned long snap_count;
	double weight;		double weight;
	int skip;		int skip;
			u8 origin;
	struct map *map;		struct map *map;
	struct source_line *source;		struct source_line *source;
	struct source_line *lines;		struct source_line *lines;
	@@ -430,6 +434,13 @@ static void print_sym_table(void)
	list_for_each_entry_safe_from(syme, n, &active_symbols, node) {		list_for_each_entry_safe_from(syme, n, &active_symbols, node) {
	syme->snap_count = syme->count[snap];		syme->snap_count = syme->count[snap];
	if (syme->snap_count != 0) {		if (syme->snap_count != 0) {
			if ((hide_user_symbols &&
			syme->origin == PERF_RECORD_MISC_USER) \|\|
			(hide_kernel_symbols &&
			syme->origin == PERF_RECORD_MISC_KERNEL)) {
			list_remove_active_sym(syme);
			continue;
			}
	syme->weight = sym_weight(syme);		syme->weight = sym_weight(syme);
	rb_insert_active_sym(&tmp, syme);		rb_insert_active_sym(&tmp, syme);
	sum_ksamples += syme->snap_count;		sum_ksamples += syme->snap_count;
	@@ -637,6 +648,12 @@ static void print_mapped_keys(void)
	if (nr_counters > 1)		if (nr_counters > 1)
	fprintf(stdout, "\t[w] toggle display weighted/count[E]r. \t(%d)\n", display_weighted ? 1 : 0);		fprintf(stdout, "\t[w] toggle display weighted/count[E]r. \t(%d)\n", display_weighted ? 1 : 0);

			fprintf(stdout,
			"\t[K] hide kernel_symbols symbols. \t(%s)\n",
			hide_kernel_symbols ? "yes" : "no");
			fprintf(stdout,
			"\t[U] hide user symbols. \t(%s)\n",
			hide_user_symbols ? "yes" : "no");
	fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", zero ? 1 : 0);		fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", zero ? 1 : 0);
	fprintf(stdout, "\t[qQ] quit.\n");		fprintf(stdout, "\t[qQ] quit.\n");
	}		}
	@@ -650,6 +667,8 @@ static int key_mapped(int c)
	case 'z':		case 'z':
	case 'q':		case 'q':
	case 'Q':		case 'Q':
			case 'K':
			case 'U':
	return 1;		return 1;
	case 'E':		case 'E':
	case 'w':		case 'w':
	@@ -727,6 +746,9 @@ static void handle_keypress(int c)
	case 'F':		case 'F':
	prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)");		prompt_percent(&sym_pcnt_filter, "Enter details display event filter (percent)");
	break;		break;
			case 'K':
			hide_kernel_symbols = !hide_kernel_symbols;
			break;
	case 'q':		case 'q':
	case 'Q':		case 'Q':
	printf("exiting.\n");		printf("exiting.\n");
	@@ -746,6 +768,9 @@ static void handle_keypress(int c)
	pthread_mutex_unlock(&syme->source_lock);		pthread_mutex_unlock(&syme->source_lock);
	}		}
	break;		break;
			case 'U':
			hide_user_symbols = !hide_user_symbols;
			break;
	case 'w':		case 'w':
	display_weighted = ~display_weighted;		display_weighted = ~display_weighted;
	break;		break;
	@@ -857,11 +882,16 @@ static void event__process_sample(const event_t *self, int counter)
	struct map *map;		struct map *map;
	struct sym_entry *syme;		struct sym_entry *syme;
	struct symbol *sym;		struct symbol *sym;
			u8 origin = self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;

	switch (self->header.misc & PERF_RECORD_MISC_CPUMODE_MASK) {		switch (origin) {
	case PERF_RECORD_MISC_USER: {		case PERF_RECORD_MISC_USER: {
	struct thread *thread = threads__findnew(self->ip.pid);		struct thread *thread;

			if (hide_user_symbols)
			return;

			thread = threads__findnew(self->ip.pid);
	if (thread == NULL)		if (thread == NULL)
	return;		return;

	@@ -885,6 +915,9 @@ static void event__process_sample(const event_t *self, int counter)
	return;		return;
	/* Fall thru */		/* Fall thru */
	case PERF_RECORD_MISC_KERNEL:		case PERF_RECORD_MISC_KERNEL:
			if (hide_kernel_symbols)
			return;

	sym = kernel_maps__find_symbol(ip, &map);		sym = kernel_maps__find_symbol(ip, &map);
	if (sym == NULL)		if (sym == NULL)
	return;		return;
	@@ -897,6 +930,7 @@ static void event__process_sample(const event_t *self, int counter)

	if (!syme->skip) {		if (!syme->skip) {
	syme->count[counter]++;		syme->count[counter]++;
			syme->origin = origin;
	record_precise_ip(syme, counter, ip);		record_precise_ip(syme, counter, ip);
	pthread_mutex_lock(&active_symbols_lock);		pthread_mutex_lock(&active_symbols_lock);
	if (list_empty(&syme->node) \|\| !syme->node.next)		if (list_empty(&syme->node) \|\| !syme->node.next)
	@@ -1178,6 +1212,8 @@ static const struct option options[] = {
	OPT_INTEGER('C', "CPU", &profile_cpu,		OPT_INTEGER('C', "CPU", &profile_cpu,
	"CPU to profile on"),		"CPU to profile on"),
	OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"),		OPT_STRING('k', "vmlinux", &vmlinux_name, "file", "vmlinux pathname"),
			OPT_BOOLEAN('K', "hide_kernel_symbols", &hide_kernel_symbols,
			"hide kernel symbols"),
	OPT_INTEGER('m', "mmap-pages", &mmap_pages,		OPT_INTEGER('m', "mmap-pages", &mmap_pages,
	"number of mmap data pages"),		"number of mmap data pages"),
	OPT_INTEGER('r', "realtime", &realtime_prio,		OPT_INTEGER('r', "realtime", &realtime_prio,
	@@ -1200,6 +1236,8 @@ static const struct option options[] = {
	"profile at this frequency"),		"profile at this frequency"),
	OPT_INTEGER('E', "entries", &print_entries,		OPT_INTEGER('E', "entries", &print_entries,
	"display this many functions"),		"display this many functions"),
			OPT_BOOLEAN('U', "hide_user_symbols", &hide_user_symbols,
			"hide user symbols"),
	OPT_BOOLEAN('v', "verbose", &verbose,		OPT_BOOLEAN('v', "verbose", &verbose,
	"be more verbose (show counter open errors, etc)"),		"be more verbose (show counter open errors, etc)"),
	OPT_END()		OPT_END()