[mirror_ubuntu-artful-kernel.git] / tools / perf / tests / hists_output.c

#include "perf.h"
#include "util/debug.h"
#include "util/event.h"
#include "util/symbol.h"
#include "util/sort.h"
#include "util/evsel.h"
#include "util/evlist.h"
#include "util/machine.h"
#include "util/thread.h"
#include "util/parse-events.h"
#include "tests/tests.h"
#include "tests/hists_common.h"
#include <linux/kernel.h>

struct sample {
	u32 cpu;
	u32 pid;
	u64 ip;
	struct thread *thread;
	struct map *map;
	struct symbol *sym;
};

/* For the numbers, see hists_common.c */
static struct sample fake_samples[] = {
	/* perf [kernel] schedule() */
	{ .cpu = 0, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
	/* perf [perf]   main() */
	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
	/* perf [perf]   cmd_record() */
	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
	/* perf [libc]   malloc() */
	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
	/* perf [libc]   free() */
	{ .cpu = 2, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
	/* perf [perf]   main() */
	{ .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
	/* perf [kernel] page_fault() */
	{ .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
	/* bash [bash]   main() */
	{ .cpu = 3, .pid = FAKE_PID_BASH,  .ip = FAKE_IP_BASH_MAIN, },
	/* bash [bash]   xmalloc() */
	{ .cpu = 0, .pid = FAKE_PID_BASH,  .ip = FAKE_IP_BASH_XMALLOC, },
	/* bash [kernel] page_fault() */
	{ .cpu = 1, .pid = FAKE_PID_BASH,  .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
};

static int add_hist_entries(struct hists *hists, struct machine *machine)
{
	struct addr_location al;
	struct perf_evsel *evsel = hists_to_evsel(hists);
	struct perf_sample sample = { .period = 100, };
	size_t i;

	for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
		struct hist_entry_iter iter = {
			.evsel = evsel,
			.sample = &sample,
			.ops = &hist_iter_normal,
			.hide_unresolved = false,
		};

		sample.cpumode = PERF_RECORD_MISC_USER;
		sample.cpu = fake_samples[i].cpu;
		sample.pid = fake_samples[i].pid;
		sample.tid = fake_samples[i].pid;
		sample.ip = fake_samples[i].ip;

		if (machine__resolve(machine, &al, &sample) < 0)
			goto out;

		if (hist_entry_iter__add(&iter, &al, sysctl_perf_event_max_stack,
					 NULL) < 0) {
			addr_location__put(&al);
			goto out;
		}

		fake_samples[i].thread = al.thread;
		fake_samples[i].map = al.map;
		fake_samples[i].sym = al.sym;
	}

	return TEST_OK;

out:
	pr_debug("Not enough memory for adding a hist entry\n");
	return TEST_FAIL;
}

static void del_hist_entries(struct hists *hists)
{
	struct hist_entry *he;
	struct rb_root *root_in;
	struct rb_root *root_out;
	struct rb_node *node;

	if (hists__has(hists, need_collapse))
		root_in = &hists->entries_collapsed;
	else
		root_in = hists->entries_in;

	root_out = &hists->entries;

	while (!RB_EMPTY_ROOT(root_out)) {
		node = rb_first(root_out);

		he = rb_entry(node, struct hist_entry, rb_node);
		rb_erase(node, root_out);
		rb_erase(&he->rb_node_in, root_in);
		hist_entry__delete(he);
	}
}

typedef int (*test_fn_t)(struct perf_evsel *, struct machine *);

#define COMM(he)  (thread__comm_str(he->thread))
#define DSO(he)   (he->ms.map->dso->short_name)
#define SYM(he)   (he->ms.sym->name)
#define CPU(he)   (he->cpu)
#define PID(he)   (he->thread->tid)

/* default sort keys (no field) */
static int test1(struct perf_evsel *evsel, struct machine *machine)
{
	int err;
	struct hists *hists = evsel__hists(evsel);
	struct hist_entry *he;
	struct rb_root *root;
	struct rb_node *node;

	field_order = NULL;
	sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */

	setup_sorting(NULL);

	/*
	 * expected output:
	 *
	 * Overhead  Command  Shared Object          Symbol
	 * ========  =======  =============  ==============
	 *   20.00%     perf  perf           [.] main
	 *   10.00%     bash  [kernel]       [k] page_fault
	 *   10.00%     bash  bash           [.] main
	 *   10.00%     bash  bash           [.] xmalloc
	 *   10.00%     perf  [kernel]       [k] page_fault
	 *   10.00%     perf  [kernel]       [k] schedule
	 *   10.00%     perf  libc           [.] free
	 *   10.00%     perf  libc           [.] malloc
	 *   10.00%     perf  perf           [.] cmd_record
	 */
	err = add_hist_entries(hists, machine);
	if (err < 0)
		goto out;

	hists__collapse_resort(hists, NULL);
	perf_evsel__output_resort(evsel, NULL);

	if (verbose > 2) {
		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
		print_hists_out(hists);
	}

	root = &hists->entries;
	node = rb_first(root);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
			!strcmp(SYM(he), "main") && he->stat.period == 200);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
			!strcmp(SYM(he), "page_fault") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
			!strcmp(SYM(he), "main") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
			!strcmp(SYM(he), "xmalloc") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
			!strcmp(SYM(he), "page_fault") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
			!strcmp(SYM(he), "schedule") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
			!strcmp(SYM(he), "free") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
			!strcmp(SYM(he), "malloc") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
			!strcmp(SYM(he), "cmd_record") && he->stat.period == 100);

out:
	del_hist_entries(hists);
	reset_output_field();
	return err;
}

/* mixed fields and sort keys */
static int test2(struct perf_evsel *evsel, struct machine *machine)
{
	int err;
	struct hists *hists = evsel__hists(evsel);
	struct hist_entry *he;
	struct rb_root *root;
	struct rb_node *node;

	field_order = "overhead,cpu";
	sort_order = "pid";

	setup_sorting(NULL);

	/*
	 * expected output:
	 *
	 * Overhead  CPU  Command:  Pid
	 * ========  ===  =============
	 *   30.00%    1  perf   :  100
	 *   10.00%    0  perf   :  100
	 *   10.00%    2  perf   :  100
	 *   20.00%    2  perf   :  200
	 *   10.00%    0  bash   :  300
	 *   10.00%    1  bash   :  300
	 *   10.00%    3  bash   :  300
	 */
	err = add_hist_entries(hists, machine);
	if (err < 0)
		goto out;

	hists__collapse_resort(hists, NULL);
	perf_evsel__output_resort(evsel, NULL);

	if (verbose > 2) {
		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
		print_hists_out(hists);
	}

	root = &hists->entries;
	node = rb_first(root);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 1 && PID(he) == 100 && he->stat.period == 300);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 0 && PID(he) == 100 && he->stat.period == 100);

out:
	del_hist_entries(hists);
	reset_output_field();
	return err;
}

/* fields only (no sort key) */
static int test3(struct perf_evsel *evsel, struct machine *machine)
{
	int err;
	struct hists *hists = evsel__hists(evsel);
	struct hist_entry *he;
	struct rb_root *root;
	struct rb_node *node;

	field_order = "comm,overhead,dso";
	sort_order = NULL;

	setup_sorting(NULL);

	/*
	 * expected output:
	 *
	 * Command  Overhead  Shared Object
	 * =======  ========  =============
	 *    bash    20.00%  bash
	 *    bash    10.00%  [kernel]
	 *    perf    30.00%  perf
	 *    perf    20.00%  [kernel]
	 *    perf    20.00%  libc
	 */
	err = add_hist_entries(hists, machine);
	if (err < 0)
		goto out;

	hists__collapse_resort(hists, NULL);
	perf_evsel__output_resort(evsel, NULL);

	if (verbose > 2) {
		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
		print_hists_out(hists);
	}

	root = &hists->entries;
	node = rb_first(root);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
			he->stat.period == 200);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
			he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
			he->stat.period == 300);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
			he->stat.period == 200);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
			he->stat.period == 200);

out:
	del_hist_entries(hists);
	reset_output_field();
	return err;
}

/* handle duplicate 'dso' field */
static int test4(struct perf_evsel *evsel, struct machine *machine)
{
	int err;
	struct hists *hists = evsel__hists(evsel);
	struct hist_entry *he;
	struct rb_root *root;
	struct rb_node *node;

	field_order = "dso,sym,comm,overhead,dso";
	sort_order = "sym";

	setup_sorting(NULL);

	/*
	 * expected output:
	 *
	 * Shared Object          Symbol  Command  Overhead
	 * =============  ==============  =======  ========
	 *          perf  [.] cmd_record     perf    10.00%
	 *          libc  [.] free           perf    10.00%
	 *          bash  [.] main           bash    10.00%
	 *          perf  [.] main           perf    20.00%
	 *          libc  [.] malloc         perf    10.00%
	 *      [kernel]  [k] page_fault     bash    10.00%
	 *      [kernel]  [k] page_fault     perf    10.00%
	 *      [kernel]  [k] schedule       perf    10.00%
	 *          bash  [.] xmalloc        bash    10.00%
	 */
	err = add_hist_entries(hists, machine);
	if (err < 0)
		goto out;

	hists__collapse_resort(hists, NULL);
	perf_evsel__output_resort(evsel, NULL);

	if (verbose > 2) {
		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
		print_hists_out(hists);
	}

	root = &hists->entries;
	node = rb_first(root);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "perf") && !strcmp(SYM(he), "cmd_record") &&
			!strcmp(COMM(he), "perf") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "libc") && !strcmp(SYM(he), "free") &&
			!strcmp(COMM(he), "perf") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "bash") && !strcmp(SYM(he), "main") &&
			!strcmp(COMM(he), "bash") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "perf") && !strcmp(SYM(he), "main") &&
			!strcmp(COMM(he), "perf") && he->stat.period == 200);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "libc") && !strcmp(SYM(he), "malloc") &&
			!strcmp(COMM(he), "perf") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
			!strcmp(COMM(he), "bash") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
			!strcmp(COMM(he), "perf") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "schedule") &&
			!strcmp(COMM(he), "perf") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			!strcmp(DSO(he), "bash") && !strcmp(SYM(he), "xmalloc") &&
			!strcmp(COMM(he), "bash") && he->stat.period == 100);

out:
	del_hist_entries(hists);
	reset_output_field();
	return err;
}

/* full sort keys w/o overhead field */
static int test5(struct perf_evsel *evsel, struct machine *machine)
{
	int err;
	struct hists *hists = evsel__hists(evsel);
	struct hist_entry *he;
	struct rb_root *root;
	struct rb_node *node;

	field_order = "cpu,pid,comm,dso,sym";
	sort_order = "dso,pid";

	setup_sorting(NULL);

	/*
	 * expected output:
	 *
	 * CPU  Command:  Pid  Command  Shared Object          Symbol
	 * ===  =============  =======  =============  ==============
	 *   0     perf:  100     perf       [kernel]  [k] schedule
	 *   2     perf:  200     perf       [kernel]  [k] page_fault
	 *   1     bash:  300     bash       [kernel]  [k] page_fault
	 *   0     bash:  300     bash           bash  [.] xmalloc
	 *   3     bash:  300     bash           bash  [.] main
	 *   1     perf:  100     perf           libc  [.] malloc
	 *   2     perf:  100     perf           libc  [.] free
	 *   1     perf:  100     perf           perf  [.] cmd_record
	 *   1     perf:  100     perf           perf  [.] main
	 *   2     perf:  200     perf           perf  [.] main
	 */
	err = add_hist_entries(hists, machine);
	if (err < 0)
		goto out;

	hists__collapse_resort(hists, NULL);
	perf_evsel__output_resort(evsel, NULL);

	if (verbose > 2) {
		pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
		print_hists_out(hists);
	}

	root = &hists->entries;
	node = rb_first(root);
	he = rb_entry(node, struct hist_entry, rb_node);

	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 0 && PID(he) == 100 &&
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
			!strcmp(SYM(he), "schedule") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 2 && PID(he) == 200 &&
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
			!strcmp(SYM(he), "page_fault") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 1 && PID(he) == 300 &&
			!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
			!strcmp(SYM(he), "page_fault") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 0 && PID(he) == 300 &&
			!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
			!strcmp(SYM(he), "xmalloc") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 3 && PID(he) == 300 &&
			!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
			!strcmp(SYM(he), "main") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 1 && PID(he) == 100 &&
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
			!strcmp(SYM(he), "malloc") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 2 && PID(he) == 100 &&
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
			!strcmp(SYM(he), "free") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 1 && PID(he) == 100 &&
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
			!strcmp(SYM(he), "cmd_record") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 1 && PID(he) == 100 &&
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
			!strcmp(SYM(he), "main") && he->stat.period == 100);

	node = rb_next(node);
	he = rb_entry(node, struct hist_entry, rb_node);
	TEST_ASSERT_VAL("Invalid hist entry",
			CPU(he) == 2 && PID(he) == 200 &&
			!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
			!strcmp(SYM(he), "main") && he->stat.period == 100);

out:
	del_hist_entries(hists);
	reset_output_field();
	return err;
}

int test__hists_output(int subtest __maybe_unused)
{
	int err = TEST_FAIL;
	struct machines machines;
	struct machine *machine;
	struct perf_evsel *evsel;
	struct perf_evlist *evlist = perf_evlist__new();
	size_t i;
	test_fn_t testcases[] = {
		test1,
		test2,
		test3,
		test4,
		test5,
	};

	TEST_ASSERT_VAL("No memory", evlist);

	err = parse_events(evlist, "cpu-clock", NULL);
	if (err)
		goto out;
	err = TEST_FAIL;

	machines__init(&machines);

	/* setup threads/dso/map/symbols also */
	machine = setup_fake_machine(&machines);
	if (!machine)
		goto out;

	if (verbose > 1)
		machine__fprintf(machine, stderr);

	evsel = perf_evlist__first(evlist);

	for (i = 0; i < ARRAY_SIZE(testcases); i++) {
		err = testcases[i](evsel, machine);
		if (err < 0)
			break;
	}

out:
	/* tear down everything */
	perf_evlist__delete(evlist);
	machines__exit(&machines);

	return err;
}
Commit	Line	Data
f21d1815 NK	1	#include "perf.h"
f21d1815 NK	2	#include "util/debug.h"
5ab8c689	3	#include "util/event.h"
f21d1815 NK	4	#include "util/symbol.h"
	5	#include "util/sort.h"
	6	#include "util/evsel.h"
	7	#include "util/evlist.h"
	8	#include "util/machine.h"
	9	#include "util/thread.h"
	10	#include "util/parse-events.h"
	11	#include "tests/tests.h"
	12	#include "tests/hists_common.h"
877a7a11	13	#include <linux/kernel.h>
f21d1815 NK	14
	15	struct sample {
	16	u32 cpu;
	17	u32 pid;
	18	u64 ip;
	19	struct thread *thread;
	20	struct map *map;
	21	struct symbol *sym;
	22	};
	23
	24	/* For the numbers, see hists_common.c */
	25	static struct sample fake_samples[] = {
	26	/* perf [kernel] schedule() */
a1891aa4	27	{ .cpu = 0, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
f21d1815	28	/* perf [perf] main() */
a1891aa4	29	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
f21d1815	30	/* perf [perf] cmd_record() */
a1891aa4	31	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
f21d1815	32	/* perf [libc] malloc() */
a1891aa4	33	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
f21d1815	34	/* perf [libc] free() */
a1891aa4	35	{ .cpu = 2, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
f21d1815	36	/* perf [perf] main() */
a1891aa4	37	{ .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
f21d1815	38	/* perf [kernel] page_fault() */
a1891aa4	39	{ .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
f21d1815	40	/* bash [bash] main() */
a1891aa4	41	{ .cpu = 3, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, },
f21d1815	42	/* bash [bash] xmalloc() */
a1891aa4	43	{ .cpu = 0, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, },
f21d1815	44	/* bash [kernel] page_fault() */
a1891aa4	45	{ .cpu = 1, .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
f21d1815 NK	46	};
	47
	48	static int add_hist_entries(struct hists hists, struct machine machine)
	49	{
	50	struct addr_location al;
69bcb019	51	struct perf_evsel *evsel = hists_to_evsel(hists);
f21d1815 NK	52	struct perf_sample sample = { .period = 100, };
	53	size_t i;
	54
	55	for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
69bcb019	56	struct hist_entry_iter iter = {
063bd936 NK	57	.evsel = evsel,
063bd936 NK	58	.sample = &sample,
69bcb019 NK	59	.ops = &hist_iter_normal,
	60	.hide_unresolved = false,
	61	};
f21d1815	62
473398a2	63	sample.cpumode = PERF_RECORD_MISC_USER;
f21d1815 NK	64	sample.cpu = fake_samples[i].cpu;
	65	sample.pid = fake_samples[i].pid;
	66	sample.tid = fake_samples[i].pid;
	67	sample.ip = fake_samples[i].ip;
	68
bb3eb566	69	if (machine__resolve(machine, &al, &sample) < 0)
f21d1815 NK	70	goto out;
f21d1815 NK	71
4cb93446	72	if (hist_entry_iter__add(&iter, &al, sysctl_perf_event_max_stack,
063bd936	73	NULL) < 0) {
b91fc39f	74	addr_location__put(&al);
f21d1815	75	goto out;
b91fc39f	76	}
f21d1815 NK	77
	78	fake_samples[i].thread = al.thread;
	79	fake_samples[i].map = al.map;
	80	fake_samples[i].sym = al.sym;
	81	}
	82
	83	return TEST_OK;
	84
	85	out:
	86	pr_debug("Not enough memory for adding a hist entry\n");
	87	return TEST_FAIL;
	88	}
	89
	90	static void del_hist_entries(struct hists *hists)
	91	{
	92	struct hist_entry *he;
	93	struct rb_root *root_in;
	94	struct rb_root *root_out;
	95	struct rb_node *node;
	96
52225036	97	if (hists__has(hists, need_collapse))
f21d1815 NK	98	root_in = &hists->entries_collapsed;
	99	else
	100	root_in = hists->entries_in;
	101
	102	root_out = &hists->entries;
	103
	104	while (!RB_EMPTY_ROOT(root_out)) {
	105	node = rb_first(root_out);
	106
	107	he = rb_entry(node, struct hist_entry, rb_node);
	108	rb_erase(node, root_out);
	109	rb_erase(&he->rb_node_in, root_in);
6733d1bf	110	hist_entry__delete(he);
f21d1815 NK	111	}
	112	}
	113
	114	typedef int (test_fn_t)(struct perf_evsel , struct machine *);
	115
	116	#define COMM(he) (thread__comm_str(he->thread))
	117	#define DSO(he) (he->ms.map->dso->short_name)
	118	#define SYM(he) (he->ms.sym->name)
	119	#define CPU(he) (he->cpu)
	120	#define PID(he) (he->thread->tid)
	121
	122	/* default sort keys (no field) */
	123	static int test1(struct perf_evsel evsel, struct machine machine)
	124	{
	125	int err;
4ea062ed	126	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	127	struct hist_entry *he;
	128	struct rb_root *root;
	129	struct rb_node *node;
	130
	131	field_order = NULL;
	132	sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */
	133
40184c46	134	setup_sorting(NULL);
f21d1815 NK	135
	136	/*
	137	* expected output:
	138	*
	139	* Overhead Command Shared Object Symbol
	140	* ======== ======= ============= ==============
	141	* 20.00% perf perf [.] main
	142	* 10.00% bash [kernel] [k] page_fault
	143	* 10.00% bash bash [.] main
	144	* 10.00% bash bash [.] xmalloc
	145	* 10.00% perf [kernel] [k] page_fault
	146	* 10.00% perf [kernel] [k] schedule
	147	* 10.00% perf libc [.] free
	148	* 10.00% perf libc [.] malloc
	149	* 10.00% perf perf [.] cmd_record
	150	*/
	151	err = add_hist_entries(hists, machine);
	152	if (err < 0)
	153	goto out;
	154
	155	hists__collapse_resort(hists, NULL);
452ce03b	156	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	157
	158	if (verbose > 2) {
	159	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	160	print_hists_out(hists);
	161	}
	162
4ea062ed	163	root = &hists->entries;
f21d1815 NK	164	node = rb_first(root);
	165	he = rb_entry(node, struct hist_entry, rb_node);
	166	TEST_ASSERT_VAL("Invalid hist entry",
	167	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	168	!strcmp(SYM(he), "main") && he->stat.period == 200);
	169
	170	node = rb_next(node);
	171	he = rb_entry(node, struct hist_entry, rb_node);
	172	TEST_ASSERT_VAL("Invalid hist entry",
	173	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
	174	!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
	175
	176	node = rb_next(node);
	177	he = rb_entry(node, struct hist_entry, rb_node);
	178	TEST_ASSERT_VAL("Invalid hist entry",
	179	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	180	!strcmp(SYM(he), "main") && he->stat.period == 100);
	181
	182	node = rb_next(node);
	183	he = rb_entry(node, struct hist_entry, rb_node);
	184	TEST_ASSERT_VAL("Invalid hist entry",
	185	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	186	!strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
	187
	188	node = rb_next(node);
	189	he = rb_entry(node, struct hist_entry, rb_node);
	190	TEST_ASSERT_VAL("Invalid hist entry",
	191	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	192	!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
	193
	194	node = rb_next(node);
	195	he = rb_entry(node, struct hist_entry, rb_node);
	196	TEST_ASSERT_VAL("Invalid hist entry",
	197	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	198	!strcmp(SYM(he), "schedule") && he->stat.period == 100);
	199
	200	node = rb_next(node);
	201	he = rb_entry(node, struct hist_entry, rb_node);
	202	TEST_ASSERT_VAL("Invalid hist entry",
	203	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	204	!strcmp(SYM(he), "free") && he->stat.period == 100);
	205
	206	node = rb_next(node);
	207	he = rb_entry(node, struct hist_entry, rb_node);
	208	TEST_ASSERT_VAL("Invalid hist entry",
	209	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	210	!strcmp(SYM(he), "malloc") && he->stat.period == 100);
	211
	212	node = rb_next(node);
	213	he = rb_entry(node, struct hist_entry, rb_node);
	214	TEST_ASSERT_VAL("Invalid hist entry",
	215	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	216	!strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
	217
	218	out:
	219	del_hist_entries(hists);
	220	reset_output_field();
	221	return err;
	222	}
	223
	224	/* mixed fields and sort keys */
	225	static int test2(struct perf_evsel evsel, struct machine machine)
	226	{
	227	int err;
4ea062ed	228	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	229	struct hist_entry *he;
	230	struct rb_root *root;
	231	struct rb_node *node;
	232
	233	field_order = "overhead,cpu";
	234	sort_order = "pid";
	235
40184c46	236	setup_sorting(NULL);
f21d1815 NK	237
	238	/*
	239	* expected output:
	240	*
	241	* Overhead CPU Command: Pid
	242	* ======== === =============
	243	* 30.00% 1 perf : 100
	244	* 10.00% 0 perf : 100
	245	* 10.00% 2 perf : 100
	246	* 20.00% 2 perf : 200
	247	* 10.00% 0 bash : 300
	248	* 10.00% 1 bash : 300
	249	* 10.00% 3 bash : 300
	250	*/
	251	err = add_hist_entries(hists, machine);
	252	if (err < 0)
	253	goto out;
	254
	255	hists__collapse_resort(hists, NULL);
452ce03b	256	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	257
	258	if (verbose > 2) {
	259	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	260	print_hists_out(hists);
	261	}
	262
4ea062ed	263	root = &hists->entries;
f21d1815 NK	264	node = rb_first(root);
	265	he = rb_entry(node, struct hist_entry, rb_node);
	266	TEST_ASSERT_VAL("Invalid hist entry",
	267	CPU(he) == 1 && PID(he) == 100 && he->stat.period == 300);
	268
	269	node = rb_next(node);
	270	he = rb_entry(node, struct hist_entry, rb_node);
	271	TEST_ASSERT_VAL("Invalid hist entry",
	272	CPU(he) == 0 && PID(he) == 100 && he->stat.period == 100);
	273
	274	out:
	275	del_hist_entries(hists);
	276	reset_output_field();
	277	return err;
	278	}
	279
	280	/* fields only (no sort key) */
	281	static int test3(struct perf_evsel evsel, struct machine machine)
	282	{
	283	int err;
4ea062ed	284	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	285	struct hist_entry *he;
	286	struct rb_root *root;
	287	struct rb_node *node;
	288
	289	field_order = "comm,overhead,dso";
	290	sort_order = NULL;
	291
40184c46	292	setup_sorting(NULL);
f21d1815 NK	293
	294	/*
	295	* expected output:
	296	*
	297	* Command Overhead Shared Object
	298	* ======= ======== =============
	299	* bash 20.00% bash
	300	* bash 10.00% [kernel]
	301	* perf 30.00% perf
	302	* perf 20.00% [kernel]
	303	* perf 20.00% libc
	304	*/
	305	err = add_hist_entries(hists, machine);
	306	if (err < 0)
	307	goto out;
	308
	309	hists__collapse_resort(hists, NULL);
452ce03b	310	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	311
	312	if (verbose > 2) {
	313	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	314	print_hists_out(hists);
	315	}
	316
4ea062ed	317	root = &hists->entries;
f21d1815 NK	318	node = rb_first(root);
	319	he = rb_entry(node, struct hist_entry, rb_node);
	320	TEST_ASSERT_VAL("Invalid hist entry",
	321	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	322	he->stat.period == 200);
	323
	324	node = rb_next(node);
	325	he = rb_entry(node, struct hist_entry, rb_node);
	326	TEST_ASSERT_VAL("Invalid hist entry",
	327	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
	328	he->stat.period == 100);
	329
	330	node = rb_next(node);
	331	he = rb_entry(node, struct hist_entry, rb_node);
	332	TEST_ASSERT_VAL("Invalid hist entry",
	333	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	334	he->stat.period == 300);
	335
	336	node = rb_next(node);
	337	he = rb_entry(node, struct hist_entry, rb_node);
	338	TEST_ASSERT_VAL("Invalid hist entry",
	339	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	340	he->stat.period == 200);
	341
	342	node = rb_next(node);
	343	he = rb_entry(node, struct hist_entry, rb_node);
	344	TEST_ASSERT_VAL("Invalid hist entry",
	345	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	346	he->stat.period == 200);
	347
	348	out:
	349	del_hist_entries(hists);
	350	reset_output_field();
	351	return err;
	352	}
	353
	354	/* handle duplicate 'dso' field */
	355	static int test4(struct perf_evsel evsel, struct machine machine)
	356	{
	357	int err;
4ea062ed	358	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	359	struct hist_entry *he;
	360	struct rb_root *root;
	361	struct rb_node *node;
	362
	363	field_order = "dso,sym,comm,overhead,dso";
	364	sort_order = "sym";
	365
40184c46	366	setup_sorting(NULL);
f21d1815 NK	367
	368	/*
	369	* expected output:
	370	*
	371	* Shared Object Symbol Command Overhead
	372	* ============= ============== ======= ========
	373	* perf [.] cmd_record perf 10.00%
	374	* libc [.] free perf 10.00%
	375	* bash [.] main bash 10.00%
	376	* perf [.] main perf 20.00%
	377	* libc [.] malloc perf 10.00%
	378	* [kernel] [k] page_fault bash 10.00%
	379	* [kernel] [k] page_fault perf 10.00%
	380	* [kernel] [k] schedule perf 10.00%
	381	* bash [.] xmalloc bash 10.00%
	382	*/
	383	err = add_hist_entries(hists, machine);
	384	if (err < 0)
	385	goto out;
	386
	387	hists__collapse_resort(hists, NULL);
452ce03b	388	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	389
	390	if (verbose > 2) {
	391	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	392	print_hists_out(hists);
	393	}
	394
4ea062ed	395	root = &hists->entries;
f21d1815 NK	396	node = rb_first(root);
	397	he = rb_entry(node, struct hist_entry, rb_node);
	398	TEST_ASSERT_VAL("Invalid hist entry",
	399	!strcmp(DSO(he), "perf") && !strcmp(SYM(he), "cmd_record") &&
	400	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	401
	402	node = rb_next(node);
	403	he = rb_entry(node, struct hist_entry, rb_node);
	404	TEST_ASSERT_VAL("Invalid hist entry",
	405	!strcmp(DSO(he), "libc") && !strcmp(SYM(he), "free") &&
	406	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	407
	408	node = rb_next(node);
	409	he = rb_entry(node, struct hist_entry, rb_node);
	410	TEST_ASSERT_VAL("Invalid hist entry",
	411	!strcmp(DSO(he), "bash") && !strcmp(SYM(he), "main") &&
	412	!strcmp(COMM(he), "bash") && he->stat.period == 100);
	413
	414	node = rb_next(node);
	415	he = rb_entry(node, struct hist_entry, rb_node);
	416	TEST_ASSERT_VAL("Invalid hist entry",
	417	!strcmp(DSO(he), "perf") && !strcmp(SYM(he), "main") &&
	418	!strcmp(COMM(he), "perf") && he->stat.period == 200);
	419
	420	node = rb_next(node);
	421	he = rb_entry(node, struct hist_entry, rb_node);
	422	TEST_ASSERT_VAL("Invalid hist entry",
	423	!strcmp(DSO(he), "libc") && !strcmp(SYM(he), "malloc") &&
	424	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	425
	426	node = rb_next(node);
	427	he = rb_entry(node, struct hist_entry, rb_node);
	428	TEST_ASSERT_VAL("Invalid hist entry",
	429	!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
	430	!strcmp(COMM(he), "bash") && he->stat.period == 100);
	431
	432	node = rb_next(node);
	433	he = rb_entry(node, struct hist_entry, rb_node);
	434	TEST_ASSERT_VAL("Invalid hist entry",
	435	!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
	436	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	437
	438	node = rb_next(node);
	439	he = rb_entry(node, struct hist_entry, rb_node);
	440	TEST_ASSERT_VAL("Invalid hist entry",
	441	!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "schedule") &&
	442	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	443
	444	node = rb_next(node);
	445	he = rb_entry(node, struct hist_entry, rb_node);
	446	TEST_ASSERT_VAL("Invalid hist entry",
	447	!strcmp(DSO(he), "bash") && !strcmp(SYM(he), "xmalloc") &&
	448	!strcmp(COMM(he), "bash") && he->stat.period == 100);
	449
	450	out:
	451	del_hist_entries(hists);
	452	reset_output_field();
	453	return err;
	454	}
	455
	456	/* full sort keys w/o overhead field */
	457	static int test5(struct perf_evsel evsel, struct machine machine)
	458	{
	459	int err;
4ea062ed	460	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	461	struct hist_entry *he;
	462	struct rb_root *root;
	463	struct rb_node *node;
	464
	465	field_order = "cpu,pid,comm,dso,sym";
	466	sort_order = "dso,pid";
	467
40184c46	468	setup_sorting(NULL);
f21d1815 NK	469
	470	/*
	471	* expected output:
	472	*
	473	* CPU Command: Pid Command Shared Object Symbol
	474	* === ============= ======= ============= ==============
	475	* 0 perf: 100 perf [kernel] [k] schedule
	476	* 2 perf: 200 perf [kernel] [k] page_fault
	477	* 1 bash: 300 bash [kernel] [k] page_fault
	478	* 0 bash: 300 bash bash [.] xmalloc
	479	* 3 bash: 300 bash bash [.] main
	480	* 1 perf: 100 perf libc [.] malloc
	481	* 2 perf: 100 perf libc [.] free
	482	* 1 perf: 100 perf perf [.] cmd_record
	483	* 1 perf: 100 perf perf [.] main
	484	* 2 perf: 200 perf perf [.] main
	485	*/
	486	err = add_hist_entries(hists, machine);
	487	if (err < 0)
	488	goto out;
	489
	490	hists__collapse_resort(hists, NULL);
452ce03b	491	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	492
	493	if (verbose > 2) {
	494	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	495	print_hists_out(hists);
	496	}
	497
4ea062ed	498	root = &hists->entries;
f21d1815 NK	499	node = rb_first(root);
	500	he = rb_entry(node, struct hist_entry, rb_node);
	501
	502	TEST_ASSERT_VAL("Invalid hist entry",
	503	CPU(he) == 0 && PID(he) == 100 &&
	504	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	505	!strcmp(SYM(he), "schedule") && he->stat.period == 100);
	506
	507	node = rb_next(node);
	508	he = rb_entry(node, struct hist_entry, rb_node);
	509	TEST_ASSERT_VAL("Invalid hist entry",
	510	CPU(he) == 2 && PID(he) == 200 &&
	511	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	512	!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
	513
	514	node = rb_next(node);
	515	he = rb_entry(node, struct hist_entry, rb_node);
	516	TEST_ASSERT_VAL("Invalid hist entry",
	517	CPU(he) == 1 && PID(he) == 300 &&
	518	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
	519	!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
	520
	521	node = rb_next(node);
	522	he = rb_entry(node, struct hist_entry, rb_node);
	523	TEST_ASSERT_VAL("Invalid hist entry",
	524	CPU(he) == 0 && PID(he) == 300 &&
	525	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	526	!strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
	527
	528	node = rb_next(node);
	529	he = rb_entry(node, struct hist_entry, rb_node);
	530	TEST_ASSERT_VAL("Invalid hist entry",
	531	CPU(he) == 3 && PID(he) == 300 &&
	532	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	533	!strcmp(SYM(he), "main") && he->stat.period == 100);
	534
	535	node = rb_next(node);
	536	he = rb_entry(node, struct hist_entry, rb_node);
	537	TEST_ASSERT_VAL("Invalid hist entry",
	538	CPU(he) == 1 && PID(he) == 100 &&
	539	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	540	!strcmp(SYM(he), "malloc") && he->stat.period == 100);
	541
	542	node = rb_next(node);
	543	he = rb_entry(node, struct hist_entry, rb_node);
	544	TEST_ASSERT_VAL("Invalid hist entry",
	545	CPU(he) == 2 && PID(he) == 100 &&
	546	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	547	!strcmp(SYM(he), "free") && he->stat.period == 100);
	548
	549	node = rb_next(node);
	550	he = rb_entry(node, struct hist_entry, rb_node);
	551	TEST_ASSERT_VAL("Invalid hist entry",
	552	CPU(he) == 1 && PID(he) == 100 &&
	553	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	554	!strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
	555
	556	node = rb_next(node);
	557	he = rb_entry(node, struct hist_entry, rb_node);
	558	TEST_ASSERT_VAL("Invalid hist entry",
	559	CPU(he) == 1 && PID(he) == 100 &&
	560	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	561	!strcmp(SYM(he), "main") && he->stat.period == 100);
	562
563	node = rb_next(node);
564	he = rb_entry(node, struct hist_entry, rb_node);
565	TEST_ASSERT_VAL("Invalid hist entry",
566	CPU(he) == 2 && PID(he) == 200 &&
567	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
568	!strcmp(SYM(he), "main") && he->stat.period == 100);
569
570	out:
571	del_hist_entries(hists);
572	reset_output_field();
573	return err;
574	}
575
721a1f53	576	int test__hists_output(int subtest __maybe_unused)
f21d1815 NK	577	{
	578	int err = TEST_FAIL;
	579	struct machines machines;
	580	struct machine *machine;
	581	struct perf_evsel *evsel;
	582	struct perf_evlist *evlist = perf_evlist__new();
	583	size_t i;
	584	test_fn_t testcases[] = {
	585	test1,
	586	test2,
	587	test3,
	588	test4,
	589	test5,
	590	};
	591
	592	TEST_ASSERT_VAL("No memory", evlist);
	593
b39b8393	594	err = parse_events(evlist, "cpu-clock", NULL);
f21d1815 NK	595	if (err)
f21d1815 NK	596	goto out;
b0500c16	597	err = TEST_FAIL;
f21d1815 NK	598
	599	machines__init(&machines);
	600
	601	/* setup threads/dso/map/symbols also */
	602	machine = setup_fake_machine(&machines);
	603	if (!machine)
	604	goto out;
	605
	606	if (verbose > 1)
	607	machine__fprintf(machine, stderr);
	608
	609	evsel = perf_evlist__first(evlist);
	610
	611	for (i = 0; i < ARRAY_SIZE(testcases); i++) {
	612	err = testcases[i](evsel, machine);
	613	if (err < 0)
	614	break;
	615	}
	616
	617	out:
	618	/* tear down everything */
	619	perf_evlist__delete(evlist);
	620	machines__exit(&machines);
	621
	622	return err;
	623	}