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

// SPDX-License-Identifier: GPL-2.0
#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(struct test *test __maybe_unused, 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
b2441318	1	// SPDX-License-Identifier: GPL-2.0
f21d1815 NK	2	#include "perf.h"
f21d1815 NK	3	#include "util/debug.h"
5ab8c689	4	#include "util/event.h"
f21d1815 NK	5	#include "util/symbol.h"
	6	#include "util/sort.h"
	7	#include "util/evsel.h"
	8	#include "util/evlist.h"
	9	#include "util/machine.h"
	10	#include "util/thread.h"
	11	#include "util/parse-events.h"
	12	#include "tests/tests.h"
	13	#include "tests/hists_common.h"
877a7a11	14	#include <linux/kernel.h>
f21d1815 NK	15
	16	struct sample {
	17	u32 cpu;
	18	u32 pid;
	19	u64 ip;
	20	struct thread *thread;
	21	struct map *map;
	22	struct symbol *sym;
	23	};
	24
	25	/* For the numbers, see hists_common.c */
	26	static struct sample fake_samples[] = {
	27	/* perf [kernel] schedule() */
a1891aa4	28	{ .cpu = 0, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_KERNEL_SCHEDULE, },
f21d1815	29	/* perf [perf] main() */
a1891aa4	30	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_MAIN, },
f21d1815	31	/* perf [perf] cmd_record() */
a1891aa4	32	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_PERF_CMD_RECORD, },
f21d1815	33	/* perf [libc] malloc() */
a1891aa4	34	{ .cpu = 1, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_MALLOC, },
f21d1815	35	/* perf [libc] free() */
a1891aa4	36	{ .cpu = 2, .pid = FAKE_PID_PERF1, .ip = FAKE_IP_LIBC_FREE, },
f21d1815	37	/* perf [perf] main() */
a1891aa4	38	{ .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_PERF_MAIN, },
f21d1815	39	/* perf [kernel] page_fault() */
a1891aa4	40	{ .cpu = 2, .pid = FAKE_PID_PERF2, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
f21d1815	41	/* bash [bash] main() */
a1891aa4	42	{ .cpu = 3, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_MAIN, },
f21d1815	43	/* bash [bash] xmalloc() */
a1891aa4	44	{ .cpu = 0, .pid = FAKE_PID_BASH, .ip = FAKE_IP_BASH_XMALLOC, },
f21d1815	45	/* bash [kernel] page_fault() */
a1891aa4	46	{ .cpu = 1, .pid = FAKE_PID_BASH, .ip = FAKE_IP_KERNEL_PAGE_FAULT, },
f21d1815 NK	47	};
	48
	49	static int add_hist_entries(struct hists hists, struct machine machine)
	50	{
	51	struct addr_location al;
69bcb019	52	struct perf_evsel *evsel = hists_to_evsel(hists);
f21d1815 NK	53	struct perf_sample sample = { .period = 100, };
	54	size_t i;
	55
	56	for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
69bcb019	57	struct hist_entry_iter iter = {
063bd936 NK	58	.evsel = evsel,
063bd936 NK	59	.sample = &sample,
69bcb019 NK	60	.ops = &hist_iter_normal,
	61	.hide_unresolved = false,
	62	};
f21d1815	63
473398a2	64	sample.cpumode = PERF_RECORD_MISC_USER;
f21d1815 NK	65	sample.cpu = fake_samples[i].cpu;
	66	sample.pid = fake_samples[i].pid;
	67	sample.tid = fake_samples[i].pid;
	68	sample.ip = fake_samples[i].ip;
	69
bb3eb566	70	if (machine__resolve(machine, &al, &sample) < 0)
f21d1815 NK	71	goto out;
f21d1815 NK	72
4cb93446	73	if (hist_entry_iter__add(&iter, &al, sysctl_perf_event_max_stack,
063bd936	74	NULL) < 0) {
b91fc39f	75	addr_location__put(&al);
f21d1815	76	goto out;
b91fc39f	77	}
f21d1815 NK	78
	79	fake_samples[i].thread = al.thread;
	80	fake_samples[i].map = al.map;
	81	fake_samples[i].sym = al.sym;
	82	}
	83
	84	return TEST_OK;
	85
	86	out:
	87	pr_debug("Not enough memory for adding a hist entry\n");
	88	return TEST_FAIL;
	89	}
	90
	91	static void del_hist_entries(struct hists *hists)
	92	{
	93	struct hist_entry *he;
	94	struct rb_root *root_in;
	95	struct rb_root *root_out;
	96	struct rb_node *node;
	97
52225036	98	if (hists__has(hists, need_collapse))
f21d1815 NK	99	root_in = &hists->entries_collapsed;
	100	else
	101	root_in = hists->entries_in;
	102
	103	root_out = &hists->entries;
	104
	105	while (!RB_EMPTY_ROOT(root_out)) {
	106	node = rb_first(root_out);
	107
	108	he = rb_entry(node, struct hist_entry, rb_node);
	109	rb_erase(node, root_out);
	110	rb_erase(&he->rb_node_in, root_in);
6733d1bf	111	hist_entry__delete(he);
f21d1815 NK	112	}
	113	}
	114
	115	typedef int (test_fn_t)(struct perf_evsel , struct machine *);
	116
	117	#define COMM(he) (thread__comm_str(he->thread))
	118	#define DSO(he) (he->ms.map->dso->short_name)
	119	#define SYM(he) (he->ms.sym->name)
	120	#define CPU(he) (he->cpu)
	121	#define PID(he) (he->thread->tid)
	122
	123	/* default sort keys (no field) */
	124	static int test1(struct perf_evsel evsel, struct machine machine)
	125	{
	126	int err;
4ea062ed	127	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	128	struct hist_entry *he;
	129	struct rb_root *root;
	130	struct rb_node *node;
	131
	132	field_order = NULL;
	133	sort_order = NULL; /* equivalent to sort_order = "comm,dso,sym" */
	134
40184c46	135	setup_sorting(NULL);
f21d1815 NK	136
	137	/*
	138	* expected output:
	139	*
	140	* Overhead Command Shared Object Symbol
	141	* ======== ======= ============= ==============
	142	* 20.00% perf perf [.] main
	143	* 10.00% bash [kernel] [k] page_fault
	144	* 10.00% bash bash [.] main
	145	* 10.00% bash bash [.] xmalloc
	146	* 10.00% perf [kernel] [k] page_fault
	147	* 10.00% perf [kernel] [k] schedule
	148	* 10.00% perf libc [.] free
	149	* 10.00% perf libc [.] malloc
	150	* 10.00% perf perf [.] cmd_record
	151	*/
	152	err = add_hist_entries(hists, machine);
	153	if (err < 0)
	154	goto out;
	155
	156	hists__collapse_resort(hists, NULL);
452ce03b	157	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	158
	159	if (verbose > 2) {
	160	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	161	print_hists_out(hists);
	162	}
	163
4ea062ed	164	root = &hists->entries;
f21d1815 NK	165	node = rb_first(root);
	166	he = rb_entry(node, struct hist_entry, rb_node);
	167	TEST_ASSERT_VAL("Invalid hist entry",
	168	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	169	!strcmp(SYM(he), "main") && he->stat.period == 200);
	170
	171	node = rb_next(node);
	172	he = rb_entry(node, struct hist_entry, rb_node);
	173	TEST_ASSERT_VAL("Invalid hist entry",
	174	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
	175	!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
	176
	177	node = rb_next(node);
	178	he = rb_entry(node, struct hist_entry, rb_node);
	179	TEST_ASSERT_VAL("Invalid hist entry",
	180	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	181	!strcmp(SYM(he), "main") && he->stat.period == 100);
	182
	183	node = rb_next(node);
	184	he = rb_entry(node, struct hist_entry, rb_node);
	185	TEST_ASSERT_VAL("Invalid hist entry",
	186	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	187	!strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
	188
	189	node = rb_next(node);
	190	he = rb_entry(node, struct hist_entry, rb_node);
	191	TEST_ASSERT_VAL("Invalid hist entry",
	192	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	193	!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
	194
	195	node = rb_next(node);
	196	he = rb_entry(node, struct hist_entry, rb_node);
	197	TEST_ASSERT_VAL("Invalid hist entry",
	198	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	199	!strcmp(SYM(he), "schedule") && he->stat.period == 100);
	200
	201	node = rb_next(node);
	202	he = rb_entry(node, struct hist_entry, rb_node);
	203	TEST_ASSERT_VAL("Invalid hist entry",
	204	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	205	!strcmp(SYM(he), "free") && he->stat.period == 100);
	206
	207	node = rb_next(node);
	208	he = rb_entry(node, struct hist_entry, rb_node);
	209	TEST_ASSERT_VAL("Invalid hist entry",
	210	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	211	!strcmp(SYM(he), "malloc") && he->stat.period == 100);
	212
	213	node = rb_next(node);
	214	he = rb_entry(node, struct hist_entry, rb_node);
	215	TEST_ASSERT_VAL("Invalid hist entry",
	216	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	217	!strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
	218
	219	out:
	220	del_hist_entries(hists);
	221	reset_output_field();
	222	return err;
	223	}
	224
	225	/* mixed fields and sort keys */
	226	static int test2(struct perf_evsel evsel, struct machine machine)
	227	{
	228	int err;
4ea062ed	229	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	230	struct hist_entry *he;
	231	struct rb_root *root;
	232	struct rb_node *node;
	233
	234	field_order = "overhead,cpu";
	235	sort_order = "pid";
	236
40184c46	237	setup_sorting(NULL);
f21d1815 NK	238
	239	/*
	240	* expected output:
	241	*
	242	* Overhead CPU Command: Pid
	243	* ======== === =============
	244	* 30.00% 1 perf : 100
	245	* 10.00% 0 perf : 100
	246	* 10.00% 2 perf : 100
	247	* 20.00% 2 perf : 200
	248	* 10.00% 0 bash : 300
	249	* 10.00% 1 bash : 300
	250	* 10.00% 3 bash : 300
	251	*/
	252	err = add_hist_entries(hists, machine);
	253	if (err < 0)
	254	goto out;
	255
	256	hists__collapse_resort(hists, NULL);
452ce03b	257	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	258
	259	if (verbose > 2) {
	260	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	261	print_hists_out(hists);
	262	}
	263
4ea062ed	264	root = &hists->entries;
f21d1815 NK	265	node = rb_first(root);
	266	he = rb_entry(node, struct hist_entry, rb_node);
	267	TEST_ASSERT_VAL("Invalid hist entry",
	268	CPU(he) == 1 && PID(he) == 100 && he->stat.period == 300);
	269
	270	node = rb_next(node);
	271	he = rb_entry(node, struct hist_entry, rb_node);
	272	TEST_ASSERT_VAL("Invalid hist entry",
	273	CPU(he) == 0 && PID(he) == 100 && he->stat.period == 100);
	274
	275	out:
	276	del_hist_entries(hists);
	277	reset_output_field();
	278	return err;
	279	}
	280
	281	/* fields only (no sort key) */
	282	static int test3(struct perf_evsel evsel, struct machine machine)
	283	{
	284	int err;
4ea062ed	285	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	286	struct hist_entry *he;
	287	struct rb_root *root;
	288	struct rb_node *node;
	289
	290	field_order = "comm,overhead,dso";
	291	sort_order = NULL;
	292
40184c46	293	setup_sorting(NULL);
f21d1815 NK	294
	295	/*
	296	* expected output:
	297	*
	298	* Command Overhead Shared Object
	299	* ======= ======== =============
	300	* bash 20.00% bash
	301	* bash 10.00% [kernel]
	302	* perf 30.00% perf
	303	* perf 20.00% [kernel]
	304	* perf 20.00% libc
	305	*/
	306	err = add_hist_entries(hists, machine);
	307	if (err < 0)
	308	goto out;
	309
	310	hists__collapse_resort(hists, NULL);
452ce03b	311	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	312
	313	if (verbose > 2) {
	314	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	315	print_hists_out(hists);
	316	}
	317
4ea062ed	318	root = &hists->entries;
f21d1815 NK	319	node = rb_first(root);
	320	he = rb_entry(node, struct hist_entry, rb_node);
	321	TEST_ASSERT_VAL("Invalid hist entry",
	322	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	323	he->stat.period == 200);
	324
	325	node = rb_next(node);
	326	he = rb_entry(node, struct hist_entry, rb_node);
	327	TEST_ASSERT_VAL("Invalid hist entry",
	328	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
	329	he->stat.period == 100);
	330
	331	node = rb_next(node);
	332	he = rb_entry(node, struct hist_entry, rb_node);
	333	TEST_ASSERT_VAL("Invalid hist entry",
	334	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	335	he->stat.period == 300);
	336
	337	node = rb_next(node);
	338	he = rb_entry(node, struct hist_entry, rb_node);
	339	TEST_ASSERT_VAL("Invalid hist entry",
	340	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	341	he->stat.period == 200);
	342
	343	node = rb_next(node);
	344	he = rb_entry(node, struct hist_entry, rb_node);
	345	TEST_ASSERT_VAL("Invalid hist entry",
	346	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	347	he->stat.period == 200);
	348
	349	out:
	350	del_hist_entries(hists);
	351	reset_output_field();
	352	return err;
	353	}
	354
	355	/* handle duplicate 'dso' field */
	356	static int test4(struct perf_evsel evsel, struct machine machine)
	357	{
	358	int err;
4ea062ed	359	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	360	struct hist_entry *he;
	361	struct rb_root *root;
	362	struct rb_node *node;
	363
	364	field_order = "dso,sym,comm,overhead,dso";
	365	sort_order = "sym";
	366
40184c46	367	setup_sorting(NULL);
f21d1815 NK	368
	369	/*
	370	* expected output:
	371	*
	372	* Shared Object Symbol Command Overhead
	373	* ============= ============== ======= ========
	374	* perf [.] cmd_record perf 10.00%
	375	* libc [.] free perf 10.00%
	376	* bash [.] main bash 10.00%
	377	* perf [.] main perf 20.00%
	378	* libc [.] malloc perf 10.00%
	379	* [kernel] [k] page_fault bash 10.00%
	380	* [kernel] [k] page_fault perf 10.00%
	381	* [kernel] [k] schedule perf 10.00%
	382	* bash [.] xmalloc bash 10.00%
	383	*/
	384	err = add_hist_entries(hists, machine);
	385	if (err < 0)
	386	goto out;
	387
	388	hists__collapse_resort(hists, NULL);
452ce03b	389	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	390
	391	if (verbose > 2) {
	392	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	393	print_hists_out(hists);
	394	}
	395
4ea062ed	396	root = &hists->entries;
f21d1815 NK	397	node = rb_first(root);
	398	he = rb_entry(node, struct hist_entry, rb_node);
	399	TEST_ASSERT_VAL("Invalid hist entry",
	400	!strcmp(DSO(he), "perf") && !strcmp(SYM(he), "cmd_record") &&
	401	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	402
	403	node = rb_next(node);
	404	he = rb_entry(node, struct hist_entry, rb_node);
	405	TEST_ASSERT_VAL("Invalid hist entry",
	406	!strcmp(DSO(he), "libc") && !strcmp(SYM(he), "free") &&
	407	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	408
	409	node = rb_next(node);
	410	he = rb_entry(node, struct hist_entry, rb_node);
	411	TEST_ASSERT_VAL("Invalid hist entry",
	412	!strcmp(DSO(he), "bash") && !strcmp(SYM(he), "main") &&
	413	!strcmp(COMM(he), "bash") && he->stat.period == 100);
	414
	415	node = rb_next(node);
	416	he = rb_entry(node, struct hist_entry, rb_node);
	417	TEST_ASSERT_VAL("Invalid hist entry",
	418	!strcmp(DSO(he), "perf") && !strcmp(SYM(he), "main") &&
	419	!strcmp(COMM(he), "perf") && he->stat.period == 200);
	420
	421	node = rb_next(node);
	422	he = rb_entry(node, struct hist_entry, rb_node);
	423	TEST_ASSERT_VAL("Invalid hist entry",
	424	!strcmp(DSO(he), "libc") && !strcmp(SYM(he), "malloc") &&
	425	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	426
	427	node = rb_next(node);
	428	he = rb_entry(node, struct hist_entry, rb_node);
	429	TEST_ASSERT_VAL("Invalid hist entry",
	430	!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
	431	!strcmp(COMM(he), "bash") && he->stat.period == 100);
	432
	433	node = rb_next(node);
	434	he = rb_entry(node, struct hist_entry, rb_node);
	435	TEST_ASSERT_VAL("Invalid hist entry",
	436	!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "page_fault") &&
	437	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	438
	439	node = rb_next(node);
	440	he = rb_entry(node, struct hist_entry, rb_node);
	441	TEST_ASSERT_VAL("Invalid hist entry",
	442	!strcmp(DSO(he), "[kernel]") && !strcmp(SYM(he), "schedule") &&
	443	!strcmp(COMM(he), "perf") && he->stat.period == 100);
	444
	445	node = rb_next(node);
	446	he = rb_entry(node, struct hist_entry, rb_node);
	447	TEST_ASSERT_VAL("Invalid hist entry",
	448	!strcmp(DSO(he), "bash") && !strcmp(SYM(he), "xmalloc") &&
	449	!strcmp(COMM(he), "bash") && he->stat.period == 100);
	450
	451	out:
	452	del_hist_entries(hists);
	453	reset_output_field();
	454	return err;
	455	}
	456
	457	/* full sort keys w/o overhead field */
	458	static int test5(struct perf_evsel evsel, struct machine machine)
	459	{
	460	int err;
4ea062ed	461	struct hists *hists = evsel__hists(evsel);
f21d1815 NK	462	struct hist_entry *he;
	463	struct rb_root *root;
	464	struct rb_node *node;
	465
	466	field_order = "cpu,pid,comm,dso,sym";
	467	sort_order = "dso,pid";
	468
40184c46	469	setup_sorting(NULL);
f21d1815 NK	470
	471	/*
	472	* expected output:
	473	*
	474	* CPU Command: Pid Command Shared Object Symbol
	475	* === ============= ======= ============= ==============
	476	* 0 perf: 100 perf [kernel] [k] schedule
	477	* 2 perf: 200 perf [kernel] [k] page_fault
	478	* 1 bash: 300 bash [kernel] [k] page_fault
	479	* 0 bash: 300 bash bash [.] xmalloc
	480	* 3 bash: 300 bash bash [.] main
	481	* 1 perf: 100 perf libc [.] malloc
	482	* 2 perf: 100 perf libc [.] free
	483	* 1 perf: 100 perf perf [.] cmd_record
	484	* 1 perf: 100 perf perf [.] main
	485	* 2 perf: 200 perf perf [.] main
	486	*/
	487	err = add_hist_entries(hists, machine);
	488	if (err < 0)
	489	goto out;
	490
	491	hists__collapse_resort(hists, NULL);
452ce03b	492	perf_evsel__output_resort(evsel, NULL);
f21d1815 NK	493
	494	if (verbose > 2) {
	495	pr_info("[fields = %s, sort = %s]\n", field_order, sort_order);
	496	print_hists_out(hists);
	497	}
	498
4ea062ed	499	root = &hists->entries;
f21d1815 NK	500	node = rb_first(root);
	501	he = rb_entry(node, struct hist_entry, rb_node);
	502
	503	TEST_ASSERT_VAL("Invalid hist entry",
	504	CPU(he) == 0 && PID(he) == 100 &&
	505	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	506	!strcmp(SYM(he), "schedule") && he->stat.period == 100);
	507
	508	node = rb_next(node);
	509	he = rb_entry(node, struct hist_entry, rb_node);
	510	TEST_ASSERT_VAL("Invalid hist entry",
	511	CPU(he) == 2 && PID(he) == 200 &&
	512	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "[kernel]") &&
	513	!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
	514
	515	node = rb_next(node);
	516	he = rb_entry(node, struct hist_entry, rb_node);
	517	TEST_ASSERT_VAL("Invalid hist entry",
	518	CPU(he) == 1 && PID(he) == 300 &&
	519	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "[kernel]") &&
	520	!strcmp(SYM(he), "page_fault") && he->stat.period == 100);
	521
	522	node = rb_next(node);
	523	he = rb_entry(node, struct hist_entry, rb_node);
	524	TEST_ASSERT_VAL("Invalid hist entry",
	525	CPU(he) == 0 && PID(he) == 300 &&
	526	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	527	!strcmp(SYM(he), "xmalloc") && he->stat.period == 100);
	528
	529	node = rb_next(node);
	530	he = rb_entry(node, struct hist_entry, rb_node);
	531	TEST_ASSERT_VAL("Invalid hist entry",
	532	CPU(he) == 3 && PID(he) == 300 &&
	533	!strcmp(COMM(he), "bash") && !strcmp(DSO(he), "bash") &&
	534	!strcmp(SYM(he), "main") && he->stat.period == 100);
	535
	536	node = rb_next(node);
	537	he = rb_entry(node, struct hist_entry, rb_node);
	538	TEST_ASSERT_VAL("Invalid hist entry",
	539	CPU(he) == 1 && PID(he) == 100 &&
	540	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	541	!strcmp(SYM(he), "malloc") && he->stat.period == 100);
	542
	543	node = rb_next(node);
	544	he = rb_entry(node, struct hist_entry, rb_node);
	545	TEST_ASSERT_VAL("Invalid hist entry",
	546	CPU(he) == 2 && PID(he) == 100 &&
	547	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "libc") &&
	548	!strcmp(SYM(he), "free") && he->stat.period == 100);
	549
	550	node = rb_next(node);
	551	he = rb_entry(node, struct hist_entry, rb_node);
	552	TEST_ASSERT_VAL("Invalid hist entry",
	553	CPU(he) == 1 && PID(he) == 100 &&
	554	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	555	!strcmp(SYM(he), "cmd_record") && he->stat.period == 100);
	556
	557	node = rb_next(node);
	558	he = rb_entry(node, struct hist_entry, rb_node);
	559	TEST_ASSERT_VAL("Invalid hist entry",
	560	CPU(he) == 1 && PID(he) == 100 &&
	561	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
	562	!strcmp(SYM(he), "main") && he->stat.period == 100);
	563
564	node = rb_next(node);
565	he = rb_entry(node, struct hist_entry, rb_node);
566	TEST_ASSERT_VAL("Invalid hist entry",
567	CPU(he) == 2 && PID(he) == 200 &&
568	!strcmp(COMM(he), "perf") && !strcmp(DSO(he), "perf") &&
569	!strcmp(SYM(he), "main") && he->stat.period == 100);
570
571	out:
572	del_hist_entries(hists);
573	reset_output_field();
574	return err;
575	}
576
81f17c90	577	int test__hists_output(struct test *test __maybe_unused, int subtest __maybe_unused)
f21d1815 NK	578	{
	579	int err = TEST_FAIL;
	580	struct machines machines;
	581	struct machine *machine;
	582	struct perf_evsel *evsel;
	583	struct perf_evlist *evlist = perf_evlist__new();
	584	size_t i;
	585	test_fn_t testcases[] = {
	586	test1,
	587	test2,
	588	test3,
	589	test4,
	590	test5,
	591	};
	592
	593	TEST_ASSERT_VAL("No memory", evlist);
	594
b39b8393	595	err = parse_events(evlist, "cpu-clock", NULL);
f21d1815 NK	596	if (err)
f21d1815 NK	597	goto out;
b0500c16	598	err = TEST_FAIL;
f21d1815 NK	599
	600	machines__init(&machines);
	601
	602	/* setup threads/dso/map/symbols also */
	603	machine = setup_fake_machine(&machines);
	604	if (!machine)
	605	goto out;
	606
	607	if (verbose > 1)
	608	machine__fprintf(machine, stderr);
	609
	610	evsel = perf_evlist__first(evlist);
	611
	612	for (i = 0; i < ARRAY_SIZE(testcases); i++) {
	613	err = testcases[i](evsel, machine);
	614	if (err < 0)
	615	break;
	616	}
	617
	618	out:
	619	/* tear down everything */
	620	perf_evlist__delete(evlist);
	621	machines__exit(&machines);
	622
	623	return err;
	624	}