Release 4.8 tools/perf/tests/builtin-test.c
/*
* builtin-test.c
*
* Builtin regression testing command: ever growing number of sanity tests
*/
#include <unistd.h>
#include <string.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 "symbol.h"
static bool dont_fork;
struct test __weak arch_tests[] = {
{
.func = NULL,
},
};
static struct test generic_tests[] = {
{
.desc = "vmlinux symtab matches kallsyms",
.func = test__vmlinux_matches_kallsyms,
},
{
.desc = "detect openat syscall event",
.func = test__openat_syscall_event,
},
{
.desc = "detect openat syscall event on all cpus",
.func = test__openat_syscall_event_on_all_cpus,
},
{
.desc = "read samples using the mmap interface",
.func = test__basic_mmap,
},
{
.desc = "parse events tests",
.func = test__parse_events,
},
{
.desc = "Validate PERF_RECORD_* events & perf_sample fields",
.func = test__PERF_RECORD,
},
{
.desc = "Test perf pmu format parsing",
.func = test__pmu,
},
{
.desc = "Test dso data read",
.func = test__dso_data,
},
{
.desc = "Test dso data cache",
.func = test__dso_data_cache,
},
{
.desc = "Test dso data reopen",
.func = test__dso_data_reopen,
},
{
.desc = "roundtrip evsel->name check",
.func = test__perf_evsel__roundtrip_name_test,
},
{
.desc = "Check parsing of sched tracepoints fields",
.func = test__perf_evsel__tp_sched_test,
},
{
.desc = "Generate and check syscalls:sys_enter_openat event fields",
.func = test__syscall_openat_tp_fields,
},
{
.desc = "struct perf_event_attr setup",
.func = test__attr,
},
{
.desc = "Test matching and linking multiple hists",
.func = test__hists_link,
},
{
.desc = "Try 'import perf' in python, checking link problems",
.func = test__python_use,
},
{
.desc = "Test breakpoint overflow signal handler",
.func = test__bp_signal,
},
{
.desc = "Test breakpoint overflow sampling",
.func = test__bp_signal_overflow,
},
{
.desc = "Test number of exit event of a simple workload",
.func = test__task_exit,
},
{
.desc = "Test software clock events have valid period values",
.func = test__sw_clock_freq,
},
{
.desc = "Test object code reading",
.func = test__code_reading,
},
{
.desc = "Test sample parsing",
.func = test__sample_parsing,
},
{
.desc = "Test using a dummy software event to keep tracking",
.func = test__keep_tracking,
},
{
.desc = "Test parsing with no sample_id_all bit set",
.func = test__parse_no_sample_id_all,
},
{
.desc = "Test filtering hist entries",
.func = test__hists_filter,
},
{
.desc = "Test mmap thread lookup",
.func = test__mmap_thread_lookup,
},
{
.desc = "Test thread mg sharing",
.func = test__thread_mg_share,
},
{
.desc = "Test output sorting of hist entries",
.func = test__hists_output,
},
{
.desc = "Test cumulation of child hist entries",
.func = test__hists_cumulate,
},
{
.desc = "Test tracking with sched_switch",
.func = test__switch_tracking,
},
{
.desc = "Filter fds with revents mask in a fdarray",
.func = test__fdarray__filter,
},
{
.desc = "Add fd to a fdarray, making it autogrow",
.func = test__fdarray__add,
},
{
.desc = "Test kmod_path__parse function",
.func = test__kmod_path__parse,
},
{
.desc = "Test thread map",
.func = test__thread_map,
},
{
.desc = "Test LLVM searching and compiling",
.func = test__llvm,
.subtest = {
.skip_if_fail = true,
.get_nr = test__llvm_subtest_get_nr,
.get_desc = test__llvm_subtest_get_desc,
},
},
{
.desc = "Test topology in session",
.func = test_session_topology,
},
{
.desc = "Test BPF filter",
.func = test__bpf,
.subtest = {
.skip_if_fail = true,
.get_nr = test__bpf_subtest_get_nr,
.get_desc = test__bpf_subtest_get_desc,
},
},
{
.desc = "Test thread map synthesize",
.func = test__thread_map_synthesize,
},
{
.desc = "Test cpu map synthesize",
.func = test__cpu_map_synthesize,
},
{
.desc = "Test stat config synthesize",
.func = test__synthesize_stat_config,
},
{
.desc = "Test stat synthesize",
.func = test__synthesize_stat,
},
{
.desc = "Test stat round synthesize",
.func = test__synthesize_stat_round,
},
{
.desc = "Test attr update synthesize",
.func = test__event_update,
},
{
.desc = "Test events times",
.func = test__event_times,
},
{
.desc = "Test backward reading from ring buffer",
.func = test__backward_ring_buffer,
},
{
.desc = "Test cpu map print",
.func = test__cpu_map_print,
},
{
.desc = "Test SDT event probing",
.func = test__sdt_event,
},
{
.desc = "Test is_printable_array function",
.func = test__is_printable_array,
},
{
.desc = "Test bitmap print",
.func = test__bitmap_print,
},
{
.func = NULL,
},
};
static struct test *tests[] = {
generic_tests,
arch_tests,
};
static bool perf_test__matches(struct test *test, 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(test->desc, argv[i]))
return true;
}
return false;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 102 | 91.89% | 2 | 50.00% |
| matt fleming | matt fleming | 7 | 6.31% | 1 | 25.00% |
| peter zijlstra | peter zijlstra | 2 | 1.80% | 1 | 25.00% |
| Total | 111 | 100.00% | 4 | 100.00% |
static int run_test(struct test *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) {
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->func(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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| jiri olsa | jiri olsa | 146 | 60.58% | 2 | 25.00% |
| wang nan | wang nan | 54 | 22.41% | 1 | 12.50% |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 24 | 9.96% | 3 | 37.50% |
| masami hiramatsu | masami hiramatsu | 13 | 5.39% | 1 | 12.50% |
| he kuang | he kuang | 4 | 1.66% | 1 | 12.50% |
| Total | 241 | 100.00% | 8 | 100.00% |
#define for_each_test(j, t) \
for (j = 0; j < ARRAY_SIZE(tests); j++) \
for (t = &tests[j][0]; t->func; t++)
static int test_and_print(struct test *t, bool force_skip, int subtest)
{
int err;
if (!force_skip) {
pr_debug("\n--- start ---\n");
err = run_test(t, subtest);
pr_debug("---- end ----\n");
} else {
pr_debug("\n--- force skipped ---\n");
err = TEST_SKIP;
}
if (!t->subtest.get_nr)
pr_debug("%s:", t->desc);
else
pr_debug("%s subtest %d:", t->desc, subtest);
switch (err) {
case TEST_OK:
pr_info(" Ok\n");
break;
case TEST_SKIP:
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
break;
case TEST_FAIL:
default:
color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
break;
}
return err;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| wang nan | wang nan | 133 | 100.00% | 1 | 100.00% |
| Total | 133 | 100.00% | 1 | 100.00% |
static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
{
struct test *t;
unsigned int j;
int i = 0;
int width = 0;
for_each_test(j, t) {
int len = strlen(t->desc);
if (width < len)
width = len;
}
for_each_test(j, t) {
int curr = i++, err;
if (!perf_test__matches(t, curr, argc, argv))
continue;
pr_info("%2d: %-*s:", i, width, t->desc);
if (intlist__find(skiplist, i)) {
color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
continue;
}
if (!t->subtest.get_nr) {
test_and_print(t, false, -1);
} else {
int subn = t->subtest.get_nr();
/*
* 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;
bool skip = false;
int subi;
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(t->subtest.get_desc(subi));
if (subw < len)
subw = len;
}
for (subi = 0; subi < subn; subi++) {
pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
t->subtest.get_desc(subi));
err = test_and_print(t, skip, subi);
if (err != TEST_OK && t->subtest.skip_if_fail)
skip = true;
}
}
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| wang nan | wang nan | 157 | 49.37% | 1 | 10.00% |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 124 | 38.99% | 5 | 50.00% |
| matt fleming | matt fleming | 30 | 9.43% | 2 | 20.00% |
| jiri olsa | jiri olsa | 7 | 2.20% | 2 | 20.00% |
| Total | 318 | 100.00% | 10 | 100.00% |
static int perf_test__list(int argc, const char **argv)
{
unsigned int j;
struct test *t;
int i = 0;
for_each_test(j, t) {
if (argc > 1 && !strstr(t->desc, argv[1]))
continue;
pr_info("%2d: %s\n", ++i, t->desc);
}
return 0;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 52 | 72.22% | 2 | 50.00% |
| matt fleming | matt fleming | 20 | 27.78% | 2 | 50.00% |
| Total | 72 | 100.00% | 4 | 100.00% |
int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused)
{
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;
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, argv);
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);
return __cmd_test(argc, argv, skiplist);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 189 | 85.14% | 4 | 44.44% |
| yunlong song | yunlong song | 16 | 7.21% | 1 | 11.11% |
| jiri olsa | jiri olsa | 12 | 5.41% | 1 | 11.11% |
| namhyung kim | namhyung kim | 4 | 1.80% | 2 | 22.22% |
| irina tirdea | irina tirdea | 1 | 0.45% | 1 | 11.11% |
| Total | 222 | 100.00% | 9 | 100.00% |
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| arnaldo carvalho de melo | arnaldo carvalho de melo | 577 | 31.83% | 19 | 24.05% |
| jiri olsa | jiri olsa | 436 | 24.05% | 29 | 36.71% |
| wang nan | wang nan | 420 | 23.17% | 6 | 7.59% |
| matt fleming | matt fleming | 97 | 5.35% | 2 | 2.53% |
| peter zijlstra | peter zijlstra | 82 | 4.52% | 1 | 1.27% |
| namhyung kim | namhyung kim | 75 | 4.14% | 8 | 10.13% |
| adrian hunter | adrian hunter | 60 | 3.31% | 5 | 6.33% |
| masami hiramatsu | masami hiramatsu | 25 | 1.38% | 2 | 2.53% |
| yunlong song | yunlong song | 16 | 0.88% | 1 | 1.27% |
| kan liang | kan liang | 12 | 0.66% | 1 | 1.27% |
| riku voipio | riku voipio | 6 | 0.33% | 1 | 1.27% |
| he kuang | he kuang | 4 | 0.22% | 1 | 1.27% |
| josh poimboeuf | josh poimboeuf | 1 | 0.06% | 1 | 1.27% |
| wang chao | wang chao | 1 | 0.06% | 1 | 1.27% |
| irina tirdea | irina tirdea | 1 | 0.06% | 1 | 1.27% |
| Total | 1813 | 100.00% | 79 | 100.00% |
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