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linux-stable/tools/perf/tests/hists_output.c
Ian Rogers 0dd5041c9a perf addr_location: Add init/exit/copy functions 
struct addr_location holds references to multiple reference counted
objects. Add init/exit functions to make maintenance of those more
consistent with the rest of the code and to try to avoid
leaks. Modification of thread reference counts isn't included in this
change.

Committer notes:

I needed to initialize result to sample->ip to make sure is set to
something, fixing a compile time error, mostly keeping the previous
logic as build_alloc_func_list() already does debugging/error prints
about what went wrong if it takes the 'goto out'.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ali Saidi <alisaidi@amazon.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Brian Robbins <brianrob@linux.microsoft.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Dmitrii Dolgov <9erthalion6@gmail.com>
Cc: Fangrui Song <maskray@google.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Ivan Babrou <ivan@cloudflare.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jing Zhang <renyu.zj@linux.alibaba.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.g.garry@oracle.com>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Wenyu Liu <liuwenyu7@huawei.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Ye Xingchen <ye.xingchen@zte.com.cn>
Cc: Yuan Can <yuancan@huawei.com>
Cc: coresight@lists.linaro.org
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20230608232823.4027869-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2023-06-12 15:57:53 -03:00

641 lines
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// SPDX-License-Identifier: GPL-2.0
#include "util/debug.h"
#include "util/dso.h"
#include "util/event.h"
#include "util/map.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 evsel *evsel = hists_to_evsel(hists);
struct perf_sample sample = { .period = 100, };
size_t i;
addr_location__init(&al);
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) {
goto out;
}
fake_samples[i].thread = al.thread;
map__put(fake_samples[i].map);
fake_samples[i].map = map__get(al.map);
fake_samples[i].sym = al.sym;
}
addr_location__exit(&al);
return TEST_OK;
out:
pr_debug("Not enough memory for adding a hist entry\n");
addr_location__exit(&al);
return TEST_FAIL;
}
static void del_hist_entries(struct hists *hists)
{
struct hist_entry *he;
struct rb_root_cached *root_in;
struct rb_root_cached *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->rb_root)) {
node = rb_first_cached(root_out);
he = rb_entry(node, struct hist_entry, rb_node);
rb_erase_cached(node, root_out);
rb_erase_cached(&he->rb_node_in, root_in);
hist_entry__delete(he);
}
}
static void put_fake_samples(void)
{
size_t i;
for (i = 0; i < ARRAY_SIZE(fake_samples); i++) {
map__put(fake_samples[i].map);
fake_samples[i].map = NULL;
}
}
typedef int (*test_fn_t)(struct evsel *, struct machine *);
#define COMM(he) (thread__comm_str(he->thread))
#define DSO(he) (map__dso(he->ms.map)->short_name)
#define SYM(he) (he->ms.sym->name)
#define CPU(he) (he->cpu)
#define PID(he) (thread__tid(he->thread))
/* default sort keys (no field) */
static int test1(struct evsel *evsel, struct machine *machine)
{
int err;
struct hists *hists = evsel__hists(evsel);
struct hist_entry *he;
struct rb_root_cached *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);
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_cached(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 evsel *evsel, struct machine *machine)
{
int err;
struct hists *hists = evsel__hists(evsel);
struct hist_entry *he;
struct rb_root_cached *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);
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_cached(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 evsel *evsel, struct machine *machine)
{
int err;
struct hists *hists = evsel__hists(evsel);
struct hist_entry *he;
struct rb_root_cached *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);
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_cached(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 evsel *evsel, struct machine *machine)
{
int err;
struct hists *hists = evsel__hists(evsel);
struct hist_entry *he;
struct rb_root_cached *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);
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_cached(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 evsel *evsel, struct machine *machine)
{
int err;
struct hists *hists = evsel__hists(evsel);
struct hist_entry *he;
struct rb_root_cached *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);
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_cached(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;
}
static int test__hists_output(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
{
int err = TEST_FAIL;
struct machines machines;
struct machine *machine;
struct evsel *evsel;
struct evlist *evlist = evlist__new();
size_t i;
test_fn_t testcases[] = {
test1,
test2,
test3,
test4,
test5,
};
TEST_ASSERT_VAL("No memory", evlist);
err = parse_event(evlist, "cpu-clock");
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 = evlist__first(evlist);
for (i = 0; i < ARRAY_SIZE(testcases); i++) {
err = testcases[i](evsel, machine);
if (err < 0)
break;
}
out:
/* tear down everything */
evlist__delete(evlist);
machines__exit(&machines);
put_fake_samples();
return err;
}
DEFINE_SUITE("Sort output of hist entries", hists_output);
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