524 lines
11 KiB
C
524 lines
11 KiB
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* builtin-test.c
|
||
|
|
*
|
||
|
|
* Builtin regression testing command: ever growing number of sanity tests
|
||
|
|
*/
|
||
|
|
#include <fcntl.h>
|
||
|
|
#include <errno.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
#include <dirent.h>
|
||
|
|
#include <sys/wait.h>
|
||
|
|
#include <sys/stat.h>
|
||
|
|
#include "builtin.h"
|
||
|
|
#include "hist.h"
|
||
|
|
#include "intlist.h"
|
||
|
|
#include "tests.h"
|
||
|
|
#include "debug.h"
|
||
|
|
#include "color.h"
|
||
|
|
#include <subcmd/parse-options.h>
|
||
|
|
#include "string2.h"
|
||
|
|
#include "symbol.h"
|
||
|
|
#include "util/rlimit.h"
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
#include <subcmd/exec-cmd.h>
|
||
|
|
#include <linux/zalloc.h>
|
||
|
|
|
||
|
|
#include "builtin-test-list.h"
|
||
|
|
|
||
|
|
static bool dont_fork;
|
||
|
|
|
||
|
|
struct test_suite *__weak arch_tests[] = {
|
||
|
|
NULL,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct test_suite *generic_tests[] = {
|
||
|
|
&suite__vmlinux_matches_kallsyms,
|
||
|
|
&suite__openat_syscall_event,
|
||
|
|
&suite__openat_syscall_event_on_all_cpus,
|
||
|
|
&suite__basic_mmap,
|
||
|
|
&suite__mem,
|
||
|
|
&suite__parse_events,
|
||
|
|
&suite__expr,
|
||
|
|
&suite__PERF_RECORD,
|
||
|
|
&suite__pmu,
|
||
|
|
&suite__pmu_events,
|
||
|
|
&suite__dso_data,
|
||
|
|
&suite__dso_data_cache,
|
||
|
|
&suite__dso_data_reopen,
|
||
|
|
&suite__perf_evsel__roundtrip_name_test,
|
||
|
|
&suite__perf_evsel__tp_sched_test,
|
||
|
|
&suite__syscall_openat_tp_fields,
|
||
|
|
&suite__attr,
|
||
|
|
&suite__hists_link,
|
||
|
|
&suite__python_use,
|
||
|
|
&suite__bp_signal,
|
||
|
|
&suite__bp_signal_overflow,
|
||
|
|
&suite__bp_accounting,
|
||
|
|
&suite__wp,
|
||
|
|
&suite__task_exit,
|
||
|
|
&suite__sw_clock_freq,
|
||
|
|
&suite__code_reading,
|
||
|
|
&suite__sample_parsing,
|
||
|
|
&suite__keep_tracking,
|
||
|
|
&suite__parse_no_sample_id_all,
|
||
|
|
&suite__hists_filter,
|
||
|
|
&suite__mmap_thread_lookup,
|
||
|
|
&suite__thread_maps_share,
|
||
|
|
&suite__hists_output,
|
||
|
|
&suite__hists_cumulate,
|
||
|
|
&suite__switch_tracking,
|
||
|
|
&suite__fdarray__filter,
|
||
|
|
&suite__fdarray__add,
|
||
|
|
&suite__kmod_path__parse,
|
||
|
|
&suite__thread_map,
|
||
|
|
&suite__llvm,
|
||
|
|
&suite__session_topology,
|
||
|
|
&suite__bpf,
|
||
|
|
&suite__thread_map_synthesize,
|
||
|
|
&suite__thread_map_remove,
|
||
|
|
&suite__cpu_map_synthesize,
|
||
|
|
&suite__synthesize_stat_config,
|
||
|
|
&suite__synthesize_stat,
|
||
|
|
&suite__synthesize_stat_round,
|
||
|
|
&suite__event_update,
|
||
|
|
&suite__event_times,
|
||
|
|
&suite__backward_ring_buffer,
|
||
|
|
&suite__cpu_map_print,
|
||
|
|
&suite__cpu_map_merge,
|
||
|
|
&suite__sdt_event,
|
||
|
|
&suite__is_printable_array,
|
||
|
|
&suite__bitmap_print,
|
||
|
|
&suite__perf_hooks,
|
||
|
|
&suite__clang,
|
||
|
|
&suite__unit_number__scnprint,
|
||
|
|
&suite__mem2node,
|
||
|
|
&suite__time_utils,
|
||
|
|
&suite__jit_write_elf,
|
||
|
|
&suite__pfm,
|
||
|
|
&suite__api_io,
|
||
|
|
&suite__maps__merge_in,
|
||
|
|
&suite__demangle_java,
|
||
|
|
&suite__demangle_ocaml,
|
||
|
|
&suite__parse_metric,
|
||
|
|
&suite__pe_file_parsing,
|
||
|
|
&suite__expand_cgroup_events,
|
||
|
|
&suite__perf_time_to_tsc,
|
||
|
|
&suite__dlfilter,
|
||
|
|
&suite__sigtrap,
|
||
|
|
NULL,
|
||
|
|
};
|
||
|
|
|
||
|
|
static struct test_suite **tests[] = {
|
||
|
|
generic_tests,
|
||
|
|
arch_tests,
|
||
|
|
};
|
||
|
|
|
||
|
|
static int num_subtests(const struct test_suite *t)
|
||
|
|
{
|
||
|
|
int num;
|
||
|
|
|
||
|
|
if (!t->test_cases)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
num = 0;
|
||
|
|
while (t->test_cases[num].name)
|
||
|
|
num++;
|
||
|
|
|
||
|
|
return num;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool has_subtests(const struct test_suite *t)
|
||
|
|
{
|
||
|
|
return num_subtests(t) > 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const char *skip_reason(const struct test_suite *t, int subtest)
|
||
|
|
{
|
||
|
|
if (!t->test_cases)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
return t->test_cases[subtest >= 0 ? subtest : 0].skip_reason;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const char *test_description(const struct test_suite *t, int subtest)
|
||
|
|
{
|
||
|
|
if (t->test_cases && subtest >= 0)
|
||
|
|
return t->test_cases[subtest].desc;
|
||
|
|
|
||
|
|
return t->desc;
|
||
|
|
}
|
||
|
|
|
||
|
|
static test_fnptr test_function(const struct test_suite *t, int subtest)
|
||
|
|
{
|
||
|
|
if (subtest <= 0)
|
||
|
|
return t->test_cases[0].run_case;
|
||
|
|
|
||
|
|
return t->test_cases[subtest].run_case;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool perf_test__matches(const char *desc, int curr, int argc, const char *argv[])
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (argc == 0)
|
||
|
|
return true;
|
||
|
|
|
||
|
|
for (i = 0; i < argc; ++i) {
|
||
|
|
char *end;
|
||
|
|
long nr = strtoul(argv[i], &end, 10);
|
||
|
|
|
||
|
|
if (*end == '\0') {
|
||
|
|
if (nr == curr + 1)
|
||
|
|
return true;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (strcasestr(desc, argv[i]))
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int run_test(struct test_suite *test, int subtest)
|
||
|
|
{
|
||
|
|
int status, err = -1, child = dont_fork ? 0 : fork();
|
||
|
|
char sbuf[STRERR_BUFSIZE];
|
||
|
|
|
||
|
|
if (child < 0) {
|
||
|
|
pr_err("failed to fork test: %s\n",
|
||
|
|
str_error_r(errno, sbuf, sizeof(sbuf)));
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!child) {
|
||
|
|
if (!dont_fork) {
|
||
|
|
pr_debug("test child forked, pid %d\n", getpid());
|
||
|
|
|
||
|
|
if (verbose <= 0) {
|
||
|
|
int nullfd = open("/dev/null", O_WRONLY);
|
||
|
|
|
||
|
|
if (nullfd >= 0) {
|
||
|
|
close(STDERR_FILENO);
|
||
|
|
close(STDOUT_FILENO);
|
||
|
|
|
||
|
|
dup2(nullfd, STDOUT_FILENO);
|
||
|
|
dup2(STDOUT_FILENO, STDERR_FILENO);
|
||
|
|
close(nullfd);
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
signal(SIGSEGV, sighandler_dump_stack);
|
||
|
|
signal(SIGFPE, sighandler_dump_stack);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
err = test_function(test, subtest)(test, subtest);
|
||
|
|
if (!dont_fork)
|
||
|
|
exit(err);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!dont_fork) {
|
||
|
|
wait(&status);
|
||
|
|
|
||
|
|
if (WIFEXITED(status)) {
|
||
|
|
err = (signed char)WEXITSTATUS(status);
|
||
|
|
pr_debug("test child finished with %d\n", err);
|
||
|
|
} else if (WIFSIGNALED(status)) {
|
||
|
|
err = -1;
|
||
|
|
pr_debug("test child interrupted\n");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
#define for_each_test(j, k, t) \
|
||
|
|
for (j = 0; j < ARRAY_SIZE(tests); j++) \
|
||
|
|
for (k = 0, t = tests[j][k]; tests[j][k]; k++, t = tests[j][k])
|
||
|
|
|
||
|
|
static int test_and_print(struct test_suite *t, int subtest)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
|
||
|
|
pr_debug("\n--- start ---\n");
|
||
|
|
err = run_test(t, subtest);
|
||
|
|
pr_debug("---- end ----\n");
|
||
|
|
|
||
|
|
if (!has_subtests(t))
|
||
|
|
pr_debug("%s:", t->desc);
|
||
|
|
else
|
||
|
|
pr_debug("%s subtest %d:", t->desc, subtest + 1);
|
||
|
|
|
||
|
|
switch (err) {
|
||
|
|
case TEST_OK:
|
||
|
|
pr_info(" Ok\n");
|
||
|
|
break;
|
||
|
|
case TEST_SKIP: {
|
||
|
|
const char *reason = skip_reason(t, subtest);
|
||
|
|
|
||
|
|
if (reason)
|
||
|
|
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", reason);
|
||
|
|
else
|
||
|
|
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case TEST_FAIL:
|
||
|
|
default:
|
||
|
|
color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct shell_test {
|
||
|
|
const char *dir;
|
||
|
|
const char *file;
|
||
|
|
};
|
||
|
|
|
||
|
|
static int shell_test__run(struct test_suite *test, int subdir __maybe_unused)
|
||
|
|
{
|
||
|
|
int err;
|
||
|
|
char script[PATH_MAX];
|
||
|
|
struct shell_test *st = test->priv;
|
||
|
|
|
||
|
|
path__join(script, sizeof(script) - 3, st->dir, st->file);
|
||
|
|
|
||
|
|
if (verbose)
|
||
|
|
strncat(script, " -v", sizeof(script) - strlen(script) - 1);
|
||
|
|
|
||
|
|
err = system(script);
|
||
|
|
if (!err)
|
||
|
|
return TEST_OK;
|
||
|
|
|
||
|
|
return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int run_shell_tests(int argc, const char *argv[], int i, int width,
|
||
|
|
struct intlist *skiplist)
|
||
|
|
{
|
||
|
|
struct shell_test st;
|
||
|
|
const struct script_file *files, *file;
|
||
|
|
|
||
|
|
files = list_script_files();
|
||
|
|
if (!files)
|
||
|
|
return 0;
|
||
|
|
for (file = files; file->dir; file++) {
|
||
|
|
int curr = i++;
|
||
|
|
struct test_case test_cases[] = {
|
||
|
|
{
|
||
|
|
.desc = file->desc,
|
||
|
|
.run_case = shell_test__run,
|
||
|
|
},
|
||
|
|
{ .name = NULL, }
|
||
|
|
};
|
||
|
|
struct test_suite test_suite = {
|
||
|
|
.desc = test_cases[0].desc,
|
||
|
|
.test_cases = test_cases,
|
||
|
|
.priv = &st,
|
||
|
|
};
|
||
|
|
st.dir = file->dir;
|
||
|
|
|
||
|
|
if (test_suite.desc == NULL ||
|
||
|
|
!perf_test__matches(test_suite.desc, curr, argc, argv))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
st.file = file->file;
|
||
|
|
pr_info("%3d: %-*s:", i, width, test_suite.desc);
|
||
|
|
|
||
|
|
if (intlist__find(skiplist, i)) {
|
||
|
|
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
test_and_print(&test_suite, 0);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
|
||
|
|
{
|
||
|
|
struct test_suite *t;
|
||
|
|
unsigned int j, k;
|
||
|
|
int i = 0;
|
||
|
|
int width = list_script_max_width();
|
||
|
|
|
||
|
|
for_each_test(j, k, t) {
|
||
|
|
int len = strlen(test_description(t, -1));
|
||
|
|
|
||
|
|
if (width < len)
|
||
|
|
width = len;
|
||
|
|
}
|
||
|
|
|
||
|
|
for_each_test(j, k, t) {
|
||
|
|
int curr = i++;
|
||
|
|
int subi;
|
||
|
|
|
||
|
|
if (!perf_test__matches(test_description(t, -1), curr, argc, argv)) {
|
||
|
|
bool skip = true;
|
||
|
|
int subn;
|
||
|
|
|
||
|
|
subn = num_subtests(t);
|
||
|
|
|
||
|
|
for (subi = 0; subi < subn; subi++) {
|
||
|
|
if (perf_test__matches(test_description(t, subi),
|
||
|
|
curr, argc, argv))
|
||
|
|
skip = false;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (skip)
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
pr_info("%3d: %-*s:", i, width, test_description(t, -1));
|
||
|
|
|
||
|
|
if (intlist__find(skiplist, i)) {
|
||
|
|
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!has_subtests(t)) {
|
||
|
|
test_and_print(t, -1);
|
||
|
|
} else {
|
||
|
|
int subn = num_subtests(t);
|
||
|
|
/*
|
||
|
|
* minus 2 to align with normal testcases.
|
||
|
|
* For subtest we print additional '.x' in number.
|
||
|
|
* for example:
|
||
|
|
*
|
||
|
|
* 35: Test LLVM searching and compiling :
|
||
|
|
* 35.1: Basic BPF llvm compiling test : Ok
|
||
|
|
*/
|
||
|
|
int subw = width > 2 ? width - 2 : width;
|
||
|
|
|
||
|
|
if (subn <= 0) {
|
||
|
|
color_fprintf(stderr, PERF_COLOR_YELLOW,
|
||
|
|
" Skip (not compiled in)\n");
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
pr_info("\n");
|
||
|
|
|
||
|
|
for (subi = 0; subi < subn; subi++) {
|
||
|
|
int len = strlen(test_description(t, subi));
|
||
|
|
|
||
|
|
if (subw < len)
|
||
|
|
subw = len;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (subi = 0; subi < subn; subi++) {
|
||
|
|
if (!perf_test__matches(test_description(t, subi),
|
||
|
|
curr, argc, argv))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
pr_info("%3d.%1d: %-*s:", i, subi + 1, subw,
|
||
|
|
test_description(t, subi));
|
||
|
|
test_and_print(t, subi);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return run_shell_tests(argc, argv, i, width, skiplist);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int perf_test__list_shell(int argc, const char **argv, int i)
|
||
|
|
{
|
||
|
|
const struct script_file *files, *file;
|
||
|
|
|
||
|
|
files = list_script_files();
|
||
|
|
if (!files)
|
||
|
|
return 0;
|
||
|
|
for (file = files; file->dir; file++) {
|
||
|
|
int curr = i++;
|
||
|
|
struct test_suite t = {
|
||
|
|
.desc = file->desc
|
||
|
|
};
|
||
|
|
|
||
|
|
if (!perf_test__matches(t.desc, curr, argc, argv))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
pr_info("%3d: %s\n", i, t.desc);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int perf_test__list(int argc, const char **argv)
|
||
|
|
{
|
||
|
|
unsigned int j, k;
|
||
|
|
struct test_suite *t;
|
||
|
|
int i = 0;
|
||
|
|
|
||
|
|
for_each_test(j, k, t) {
|
||
|
|
int curr = i++;
|
||
|
|
|
||
|
|
if (!perf_test__matches(test_description(t, -1), curr, argc, argv))
|
||
|
|
continue;
|
||
|
|
|
||
|
|
pr_info("%3d: %s\n", i, test_description(t, -1));
|
||
|
|
|
||
|
|
if (has_subtests(t)) {
|
||
|
|
int subn = num_subtests(t);
|
||
|
|
int subi;
|
||
|
|
|
||
|
|
for (subi = 0; subi < subn; subi++)
|
||
|
|
pr_info("%3d:%1d: %s\n", i, subi + 1,
|
||
|
|
test_description(t, subi));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
perf_test__list_shell(argc, argv, i);
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
int cmd_test(int argc, const char **argv)
|
||
|
|
{
|
||
|
|
const char *test_usage[] = {
|
||
|
|
"perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
|
||
|
|
NULL,
|
||
|
|
};
|
||
|
|
const char *skip = NULL;
|
||
|
|
const struct option test_options[] = {
|
||
|
|
OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
|
||
|
|
OPT_INCR('v', "verbose", &verbose,
|
||
|
|
"be more verbose (show symbol address, etc)"),
|
||
|
|
OPT_BOOLEAN('F', "dont-fork", &dont_fork,
|
||
|
|
"Do not fork for testcase"),
|
||
|
|
OPT_END()
|
||
|
|
};
|
||
|
|
const char * const test_subcommands[] = { "list", NULL };
|
||
|
|
struct intlist *skiplist = NULL;
|
||
|
|
int ret = hists__init();
|
||
|
|
|
||
|
|
if (ret < 0)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
/* Unbuffered output */
|
||
|
|
setvbuf(stdout, NULL, _IONBF, 0);
|
||
|
|
|
||
|
|
argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
|
||
|
|
if (argc >= 1 && !strcmp(argv[0], "list"))
|
||
|
|
return perf_test__list(argc - 1, argv + 1);
|
||
|
|
|
||
|
|
symbol_conf.priv_size = sizeof(int);
|
||
|
|
symbol_conf.sort_by_name = true;
|
||
|
|
symbol_conf.try_vmlinux_path = true;
|
||
|
|
|
||
|
|
if (symbol__init(NULL) < 0)
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
if (skip != NULL)
|
||
|
|
skiplist = intlist__new(skip);
|
||
|
|
/*
|
||
|
|
* Tests that create BPF maps, for instance, need more than the 64K
|
||
|
|
* default:
|
||
|
|
*/
|
||
|
|
rlimit__bump_memlock();
|
||
|
|
|
||
|
|
return __cmd_test(argc, argv, skiplist);
|
||
|
|
}
|