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1/*
2 * builtin-test.c
3 *
4 * Builtin regression testing command: ever growing number of sanity tests
5 */
6#include <unistd.h>
7#include <string.h>
8#include "builtin.h"
9#include "hist.h"
10#include "intlist.h"
11#include "tests.h"
12#include "debug.h"
13#include "color.h"
14#include <subcmd/parse-options.h>
15#include "symbol.h"
16
17struct test __weak arch_tests[] = {
18 {
19 .func = NULL,
20 },
21};
22
23static struct test generic_tests[] = {
24 {
25 .desc = "vmlinux symtab matches kallsyms",
26 .func = test__vmlinux_matches_kallsyms,
27 },
28 {
29 .desc = "detect openat syscall event",
30 .func = test__openat_syscall_event,
31 },
32 {
33 .desc = "detect openat syscall event on all cpus",
34 .func = test__openat_syscall_event_on_all_cpus,
35 },
36 {
37 .desc = "read samples using the mmap interface",
38 .func = test__basic_mmap,
39 },
40 {
41 .desc = "parse events tests",
42 .func = test__parse_events,
43 },
44 {
45 .desc = "Validate PERF_RECORD_* events & perf_sample fields",
46 .func = test__PERF_RECORD,
47 },
48 {
49 .desc = "Test perf pmu format parsing",
50 .func = test__pmu,
51 },
52 {
53 .desc = "Test dso data read",
54 .func = test__dso_data,
55 },
56 {
57 .desc = "Test dso data cache",
58 .func = test__dso_data_cache,
59 },
60 {
61 .desc = "Test dso data reopen",
62 .func = test__dso_data_reopen,
63 },
64 {
65 .desc = "roundtrip evsel->name check",
66 .func = test__perf_evsel__roundtrip_name_test,
67 },
68 {
69 .desc = "Check parsing of sched tracepoints fields",
70 .func = test__perf_evsel__tp_sched_test,
71 },
72 {
73 .desc = "Generate and check syscalls:sys_enter_openat event fields",
74 .func = test__syscall_openat_tp_fields,
75 },
76 {
77 .desc = "struct perf_event_attr setup",
78 .func = test__attr,
79 },
80 {
81 .desc = "Test matching and linking multiple hists",
82 .func = test__hists_link,
83 },
84 {
85 .desc = "Try 'import perf' in python, checking link problems",
86 .func = test__python_use,
87 },
88 {
89 .desc = "Test breakpoint overflow signal handler",
90 .func = test__bp_signal,
91 },
92 {
93 .desc = "Test breakpoint overflow sampling",
94 .func = test__bp_signal_overflow,
95 },
96 {
97 .desc = "Test number of exit event of a simple workload",
98 .func = test__task_exit,
99 },
100 {
101 .desc = "Test software clock events have valid period values",
102 .func = test__sw_clock_freq,
103 },
104 {
105 .desc = "Test object code reading",
106 .func = test__code_reading,
107 },
108 {
109 .desc = "Test sample parsing",
110 .func = test__sample_parsing,
111 },
112 {
113 .desc = "Test using a dummy software event to keep tracking",
114 .func = test__keep_tracking,
115 },
116 {
117 .desc = "Test parsing with no sample_id_all bit set",
118 .func = test__parse_no_sample_id_all,
119 },
120 {
121 .desc = "Test filtering hist entries",
122 .func = test__hists_filter,
123 },
124 {
125 .desc = "Test mmap thread lookup",
126 .func = test__mmap_thread_lookup,
127 },
128 {
129 .desc = "Test thread mg sharing",
130 .func = test__thread_mg_share,
131 },
132 {
133 .desc = "Test output sorting of hist entries",
134 .func = test__hists_output,
135 },
136 {
137 .desc = "Test cumulation of child hist entries",
138 .func = test__hists_cumulate,
139 },
140 {
141 .desc = "Test tracking with sched_switch",
142 .func = test__switch_tracking,
143 },
144 {
145 .desc = "Filter fds with revents mask in a fdarray",
146 .func = test__fdarray__filter,
147 },
148 {
149 .desc = "Add fd to a fdarray, making it autogrow",
150 .func = test__fdarray__add,
151 },
152 {
153 .desc = "Test kmod_path__parse function",
154 .func = test__kmod_path__parse,
155 },
156 {
157 .desc = "Test thread map",
158 .func = test__thread_map,
159 },
160 {
161 .desc = "Test LLVM searching and compiling",
162 .func = test__llvm,
163 .subtest = {
164 .skip_if_fail = true,
165 .get_nr = test__llvm_subtest_get_nr,
166 .get_desc = test__llvm_subtest_get_desc,
167 },
168 },
169 {
170 .desc = "Test topology in session",
171 .func = test_session_topology,
172 },
173 {
174 .desc = "Test BPF filter",
175 .func = test__bpf,
176 .subtest = {
177 .skip_if_fail = true,
178 .get_nr = test__bpf_subtest_get_nr,
179 .get_desc = test__bpf_subtest_get_desc,
180 },
181 },
182 {
183 .desc = "Test thread map synthesize",
184 .func = test__thread_map_synthesize,
185 },
186 {
187 .desc = "Test cpu map synthesize",
188 .func = test__cpu_map_synthesize,
189 },
190 {
191 .desc = "Test stat config synthesize",
192 .func = test__synthesize_stat_config,
193 },
194 {
195 .desc = "Test stat synthesize",
196 .func = test__synthesize_stat,
197 },
198 {
199 .desc = "Test stat round synthesize",
200 .func = test__synthesize_stat_round,
201 },
202 {
203 .desc = "Test attr update synthesize",
204 .func = test__event_update,
205 },
206 {
207 .func = NULL,
208 },
209};
210
211static struct test *tests[] = {
212 generic_tests,
213 arch_tests,
214};
215
216static bool perf_test__matches(struct test *test, int curr, int argc, const char *argv[])
217{
218 int i;
219
220 if (argc == 0)
221 return true;
222
223 for (i = 0; i < argc; ++i) {
224 char *end;
225 long nr = strtoul(argv[i], &end, 10);
226
227 if (*end == '\0') {
228 if (nr == curr + 1)
229 return true;
230 continue;
231 }
232
233 if (strcasestr(test->desc, argv[i]))
234 return true;
235 }
236
237 return false;
238}
239
240static int run_test(struct test *test, int subtest)
241{
242 int status, err = -1, child = fork();
243 char sbuf[STRERR_BUFSIZE];
244
245 if (child < 0) {
246 pr_err("failed to fork test: %s\n",
247 strerror_r(errno, sbuf, sizeof(sbuf)));
248 return -1;
249 }
250
251 if (!child) {
252 pr_debug("test child forked, pid %d\n", getpid());
253 if (!verbose) {
254 int nullfd = open("/dev/null", O_WRONLY);
255 if (nullfd >= 0) {
256 close(STDERR_FILENO);
257 close(STDOUT_FILENO);
258
259 dup2(nullfd, STDOUT_FILENO);
260 dup2(STDOUT_FILENO, STDERR_FILENO);
261 close(nullfd);
262 }
263 } else {
264 signal(SIGSEGV, sighandler_dump_stack);
265 signal(SIGFPE, sighandler_dump_stack);
266 }
267
268 err = test->func(subtest);
269 exit(err);
270 }
271
272 wait(&status);
273
274 if (WIFEXITED(status)) {
275 err = (signed char)WEXITSTATUS(status);
276 pr_debug("test child finished with %d\n", err);
277 } else if (WIFSIGNALED(status)) {
278 err = -1;
279 pr_debug("test child interrupted\n");
280 }
281
282 return err;
283}
284
285#define for_each_test(j, t) \
286 for (j = 0; j < ARRAY_SIZE(tests); j++) \
287 for (t = &tests[j][0]; t->func; t++)
288
289static int test_and_print(struct test *t, bool force_skip, int subtest)
290{
291 int err;
292
293 if (!force_skip) {
294 pr_debug("\n--- start ---\n");
295 err = run_test(t, subtest);
296 pr_debug("---- end ----\n");
297 } else {
298 pr_debug("\n--- force skipped ---\n");
299 err = TEST_SKIP;
300 }
301
302 if (!t->subtest.get_nr)
303 pr_debug("%s:", t->desc);
304 else
305 pr_debug("%s subtest %d:", t->desc, subtest);
306
307 switch (err) {
308 case TEST_OK:
309 pr_info(" Ok\n");
310 break;
311 case TEST_SKIP:
312 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
313 break;
314 case TEST_FAIL:
315 default:
316 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
317 break;
318 }
319
320 return err;
321}
322
323static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
324{
325 struct test *t;
326 unsigned int j;
327 int i = 0;
328 int width = 0;
329
330 for_each_test(j, t) {
331 int len = strlen(t->desc);
332
333 if (width < len)
334 width = len;
335 }
336
337 for_each_test(j, t) {
338 int curr = i++, err;
339
340 if (!perf_test__matches(t, curr, argc, argv))
341 continue;
342
343 pr_info("%2d: %-*s:", i, width, t->desc);
344
345 if (intlist__find(skiplist, i)) {
346 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
347 continue;
348 }
349
350 if (!t->subtest.get_nr) {
351 test_and_print(t, false, -1);
352 } else {
353 int subn = t->subtest.get_nr();
354 /*
355 * minus 2 to align with normal testcases.
356 * For subtest we print additional '.x' in number.
357 * for example:
358 *
359 * 35: Test LLVM searching and compiling :
360 * 35.1: Basic BPF llvm compiling test : Ok
361 */
362 int subw = width > 2 ? width - 2 : width;
363 bool skip = false;
364 int subi;
365
366 if (subn <= 0) {
367 color_fprintf(stderr, PERF_COLOR_YELLOW,
368 " Skip (not compiled in)\n");
369 continue;
370 }
371 pr_info("\n");
372
373 for (subi = 0; subi < subn; subi++) {
374 int len = strlen(t->subtest.get_desc(subi));
375
376 if (subw < len)
377 subw = len;
378 }
379
380 for (subi = 0; subi < subn; subi++) {
381 pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
382 t->subtest.get_desc(subi));
383 err = test_and_print(t, skip, subi);
384 if (err != TEST_OK && t->subtest.skip_if_fail)
385 skip = true;
386 }
387 }
388 }
389
390 return 0;
391}
392
393static int perf_test__list(int argc, const char **argv)
394{
395 unsigned int j;
396 struct test *t;
397 int i = 0;
398
399 for_each_test(j, t) {
400 if (argc > 1 && !strstr(t->desc, argv[1]))
401 continue;
402
403 pr_info("%2d: %s\n", ++i, t->desc);
404 }
405
406 return 0;
407}
408
409int cmd_test(int argc, const char **argv, const char *prefix __maybe_unused)
410{
411 const char *test_usage[] = {
412 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
413 NULL,
414 };
415 const char *skip = NULL;
416 const struct option test_options[] = {
417 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
418 OPT_INCR('v', "verbose", &verbose,
419 "be more verbose (show symbol address, etc)"),
420 OPT_END()
421 };
422 const char * const test_subcommands[] = { "list", NULL };
423 struct intlist *skiplist = NULL;
424 int ret = hists__init();
425
426 if (ret < 0)
427 return ret;
428
429 argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
430 if (argc >= 1 && !strcmp(argv[0], "list"))
431 return perf_test__list(argc, argv);
432
433 symbol_conf.priv_size = sizeof(int);
434 symbol_conf.sort_by_name = true;
435 symbol_conf.try_vmlinux_path = true;
436
437 if (symbol__init(NULL) < 0)
438 return -1;
439
440 if (skip != NULL)
441 skiplist = intlist__new(skip);
442
443 return __cmd_test(argc, argv, skiplist);
444}
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * builtin-test.c
4 *
5 * Builtin regression testing command: ever growing number of sanity tests
6 */
7#include <fcntl.h>
8#include <errno.h>
9#include <unistd.h>
10#include <string.h>
11#include <stdlib.h>
12#include <sys/types.h>
13#include <dirent.h>
14#include <sys/wait.h>
15#include <sys/stat.h>
16#include "builtin.h"
17#include "config.h"
18#include "hist.h"
19#include "intlist.h"
20#include "tests.h"
21#include "debug.h"
22#include "color.h"
23#include <subcmd/parse-options.h>
24#include "string2.h"
25#include "symbol.h"
26#include "util/rlimit.h"
27#include <linux/kernel.h>
28#include <linux/string.h>
29#include <subcmd/exec-cmd.h>
30#include <linux/zalloc.h>
31
32#include "builtin-test-list.h"
33
34static bool dont_fork;
35const char *dso_to_test;
36const char *test_objdump_path = "objdump";
37
38/*
39 * List of architecture specific tests. Not a weak symbol as the array length is
40 * dependent on the initialization, as such GCC with LTO complains of
41 * conflicting definitions with a weak symbol.
42 */
43#if defined(__i386__) || defined(__x86_64__) || defined(__aarch64__) || defined(__powerpc64__)
44extern struct test_suite *arch_tests[];
45#else
46static struct test_suite *arch_tests[] = {
47 NULL,
48};
49#endif
50
51static struct test_suite *generic_tests[] = {
52 &suite__vmlinux_matches_kallsyms,
53#ifdef HAVE_LIBTRACEEVENT
54 &suite__openat_syscall_event,
55 &suite__openat_syscall_event_on_all_cpus,
56 &suite__basic_mmap,
57#endif
58 &suite__mem,
59 &suite__parse_events,
60 &suite__expr,
61 &suite__PERF_RECORD,
62 &suite__pmu,
63 &suite__pmu_events,
64 &suite__dso_data,
65 &suite__perf_evsel__roundtrip_name_test,
66#ifdef HAVE_LIBTRACEEVENT
67 &suite__perf_evsel__tp_sched_test,
68 &suite__syscall_openat_tp_fields,
69#endif
70 &suite__attr,
71 &suite__hists_link,
72 &suite__python_use,
73 &suite__bp_signal,
74 &suite__bp_signal_overflow,
75 &suite__bp_accounting,
76 &suite__wp,
77 &suite__task_exit,
78 &suite__sw_clock_freq,
79 &suite__code_reading,
80 &suite__sample_parsing,
81 &suite__keep_tracking,
82 &suite__parse_no_sample_id_all,
83 &suite__hists_filter,
84 &suite__mmap_thread_lookup,
85 &suite__thread_maps_share,
86 &suite__hists_output,
87 &suite__hists_cumulate,
88#ifdef HAVE_LIBTRACEEVENT
89 &suite__switch_tracking,
90#endif
91 &suite__fdarray__filter,
92 &suite__fdarray__add,
93 &suite__kmod_path__parse,
94 &suite__thread_map,
95 &suite__session_topology,
96 &suite__thread_map_synthesize,
97 &suite__thread_map_remove,
98 &suite__cpu_map,
99 &suite__synthesize_stat_config,
100 &suite__synthesize_stat,
101 &suite__synthesize_stat_round,
102 &suite__event_update,
103 &suite__event_times,
104 &suite__backward_ring_buffer,
105 &suite__sdt_event,
106 &suite__is_printable_array,
107 &suite__bitmap_print,
108 &suite__perf_hooks,
109 &suite__unit_number__scnprint,
110 &suite__mem2node,
111 &suite__time_utils,
112 &suite__jit_write_elf,
113 &suite__pfm,
114 &suite__api_io,
115 &suite__maps__merge_in,
116 &suite__demangle_java,
117 &suite__demangle_ocaml,
118 &suite__parse_metric,
119 &suite__pe_file_parsing,
120 &suite__expand_cgroup_events,
121 &suite__perf_time_to_tsc,
122 &suite__dlfilter,
123 &suite__sigtrap,
124 &suite__event_groups,
125 &suite__symbols,
126 &suite__util,
127 NULL,
128};
129
130static struct test_suite **tests[] = {
131 generic_tests,
132 arch_tests,
133};
134
135static struct test_workload *workloads[] = {
136 &workload__noploop,
137 &workload__thloop,
138 &workload__leafloop,
139 &workload__sqrtloop,
140 &workload__brstack,
141 &workload__datasym,
142};
143
144static int num_subtests(const struct test_suite *t)
145{
146 int num;
147
148 if (!t->test_cases)
149 return 0;
150
151 num = 0;
152 while (t->test_cases[num].name)
153 num++;
154
155 return num;
156}
157
158static bool has_subtests(const struct test_suite *t)
159{
160 return num_subtests(t) > 1;
161}
162
163static const char *skip_reason(const struct test_suite *t, int subtest)
164{
165 if (!t->test_cases)
166 return NULL;
167
168 return t->test_cases[subtest >= 0 ? subtest : 0].skip_reason;
169}
170
171static const char *test_description(const struct test_suite *t, int subtest)
172{
173 if (t->test_cases && subtest >= 0)
174 return t->test_cases[subtest].desc;
175
176 return t->desc;
177}
178
179static test_fnptr test_function(const struct test_suite *t, int subtest)
180{
181 if (subtest <= 0)
182 return t->test_cases[0].run_case;
183
184 return t->test_cases[subtest].run_case;
185}
186
187static bool perf_test__matches(const char *desc, int curr, int argc, const char *argv[])
188{
189 int i;
190
191 if (argc == 0)
192 return true;
193
194 for (i = 0; i < argc; ++i) {
195 char *end;
196 long nr = strtoul(argv[i], &end, 10);
197
198 if (*end == '\0') {
199 if (nr == curr + 1)
200 return true;
201 continue;
202 }
203
204 if (strcasestr(desc, argv[i]))
205 return true;
206 }
207
208 return false;
209}
210
211static int run_test(struct test_suite *test, int subtest)
212{
213 int status, err = -1, child = dont_fork ? 0 : fork();
214 char sbuf[STRERR_BUFSIZE];
215
216 if (child < 0) {
217 pr_err("failed to fork test: %s\n",
218 str_error_r(errno, sbuf, sizeof(sbuf)));
219 return -1;
220 }
221
222 if (!child) {
223 if (!dont_fork) {
224 pr_debug("test child forked, pid %d\n", getpid());
225
226 if (verbose <= 0) {
227 int nullfd = open("/dev/null", O_WRONLY);
228
229 if (nullfd >= 0) {
230 close(STDERR_FILENO);
231 close(STDOUT_FILENO);
232
233 dup2(nullfd, STDOUT_FILENO);
234 dup2(STDOUT_FILENO, STDERR_FILENO);
235 close(nullfd);
236 }
237 } else {
238 signal(SIGSEGV, sighandler_dump_stack);
239 signal(SIGFPE, sighandler_dump_stack);
240 }
241 }
242
243 err = test_function(test, subtest)(test, subtest);
244 if (!dont_fork)
245 exit(err);
246 }
247
248 if (!dont_fork) {
249 wait(&status);
250
251 if (WIFEXITED(status)) {
252 err = (signed char)WEXITSTATUS(status);
253 pr_debug("test child finished with %d\n", err);
254 } else if (WIFSIGNALED(status)) {
255 err = -1;
256 pr_debug("test child interrupted\n");
257 }
258 }
259
260 return err;
261}
262
263#define for_each_test(j, k, t) \
264 for (j = 0, k = 0; j < ARRAY_SIZE(tests); j++, k = 0) \
265 while ((t = tests[j][k++]) != NULL)
266
267static int test_and_print(struct test_suite *t, int subtest)
268{
269 int err;
270
271 pr_debug("\n--- start ---\n");
272 err = run_test(t, subtest);
273 pr_debug("---- end ----\n");
274
275 if (!has_subtests(t))
276 pr_debug("%s:", t->desc);
277 else
278 pr_debug("%s subtest %d:", t->desc, subtest + 1);
279
280 switch (err) {
281 case TEST_OK:
282 pr_info(" Ok\n");
283 break;
284 case TEST_SKIP: {
285 const char *reason = skip_reason(t, subtest);
286
287 if (reason)
288 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", reason);
289 else
290 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
291 }
292 break;
293 case TEST_FAIL:
294 default:
295 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
296 break;
297 }
298
299 return err;
300}
301
302struct shell_test {
303 const char *dir;
304 const char *file;
305};
306
307static int shell_test__run(struct test_suite *test, int subdir __maybe_unused)
308{
309 int err;
310 char script[PATH_MAX];
311 struct shell_test *st = test->priv;
312
313 path__join(script, sizeof(script) - 3, st->dir, st->file);
314
315 if (verbose > 0)
316 strncat(script, " -v", sizeof(script) - strlen(script) - 1);
317
318 err = system(script);
319 if (!err)
320 return TEST_OK;
321
322 return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
323}
324
325static int run_shell_tests(int argc, const char *argv[], int i, int width,
326 struct intlist *skiplist)
327{
328 struct shell_test st;
329 const struct script_file *files, *file;
330
331 files = list_script_files();
332 if (!files)
333 return 0;
334 for (file = files; file->dir; file++) {
335 int curr = i++;
336 struct test_case test_cases[] = {
337 {
338 .desc = file->desc,
339 .run_case = shell_test__run,
340 },
341 { .name = NULL, }
342 };
343 struct test_suite test_suite = {
344 .desc = test_cases[0].desc,
345 .test_cases = test_cases,
346 .priv = &st,
347 };
348 st.dir = file->dir;
349
350 if (test_suite.desc == NULL ||
351 !perf_test__matches(test_suite.desc, curr, argc, argv))
352 continue;
353
354 st.file = file->file;
355 pr_info("%3d: %-*s:", i, width, test_suite.desc);
356
357 if (intlist__find(skiplist, i)) {
358 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
359 continue;
360 }
361
362 test_and_print(&test_suite, 0);
363 }
364 return 0;
365}
366
367static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
368{
369 struct test_suite *t;
370 unsigned int j, k;
371 int i = 0;
372 int width = list_script_max_width();
373
374 for_each_test(j, k, t) {
375 int len = strlen(test_description(t, -1));
376
377 if (width < len)
378 width = len;
379 }
380
381 for_each_test(j, k, t) {
382 int curr = i++;
383 int subi;
384
385 if (!perf_test__matches(test_description(t, -1), curr, argc, argv)) {
386 bool skip = true;
387 int subn;
388
389 subn = num_subtests(t);
390
391 for (subi = 0; subi < subn; subi++) {
392 if (perf_test__matches(test_description(t, subi),
393 curr, argc, argv))
394 skip = false;
395 }
396
397 if (skip)
398 continue;
399 }
400
401 pr_info("%3d: %-*s:", i, width, test_description(t, -1));
402
403 if (intlist__find(skiplist, i)) {
404 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
405 continue;
406 }
407
408 if (!has_subtests(t)) {
409 test_and_print(t, -1);
410 } else {
411 int subn = num_subtests(t);
412 /*
413 * minus 2 to align with normal testcases.
414 * For subtest we print additional '.x' in number.
415 * for example:
416 *
417 * 35: Test LLVM searching and compiling :
418 * 35.1: Basic BPF llvm compiling test : Ok
419 */
420 int subw = width > 2 ? width - 2 : width;
421
422 if (subn <= 0) {
423 color_fprintf(stderr, PERF_COLOR_YELLOW,
424 " Skip (not compiled in)\n");
425 continue;
426 }
427 pr_info("\n");
428
429 for (subi = 0; subi < subn; subi++) {
430 int len = strlen(test_description(t, subi));
431
432 if (subw < len)
433 subw = len;
434 }
435
436 for (subi = 0; subi < subn; subi++) {
437 if (!perf_test__matches(test_description(t, subi),
438 curr, argc, argv))
439 continue;
440
441 pr_info("%3d.%1d: %-*s:", i, subi + 1, subw,
442 test_description(t, subi));
443 test_and_print(t, subi);
444 }
445 }
446 }
447
448 return run_shell_tests(argc, argv, i, width, skiplist);
449}
450
451static int perf_test__list_shell(int argc, const char **argv, int i)
452{
453 const struct script_file *files, *file;
454
455 files = list_script_files();
456 if (!files)
457 return 0;
458 for (file = files; file->dir; file++) {
459 int curr = i++;
460 struct test_suite t = {
461 .desc = file->desc
462 };
463
464 if (!perf_test__matches(t.desc, curr, argc, argv))
465 continue;
466
467 pr_info("%3d: %s\n", i, t.desc);
468 }
469 return 0;
470}
471
472static int perf_test__list(int argc, const char **argv)
473{
474 unsigned int j, k;
475 struct test_suite *t;
476 int i = 0;
477
478 for_each_test(j, k, t) {
479 int curr = i++;
480
481 if (!perf_test__matches(test_description(t, -1), curr, argc, argv))
482 continue;
483
484 pr_info("%3d: %s\n", i, test_description(t, -1));
485
486 if (has_subtests(t)) {
487 int subn = num_subtests(t);
488 int subi;
489
490 for (subi = 0; subi < subn; subi++)
491 pr_info("%3d:%1d: %s\n", i, subi + 1,
492 test_description(t, subi));
493 }
494 }
495
496 perf_test__list_shell(argc, argv, i);
497
498 return 0;
499}
500
501static int run_workload(const char *work, int argc, const char **argv)
502{
503 unsigned int i = 0;
504 struct test_workload *twl;
505
506 for (i = 0; i < ARRAY_SIZE(workloads); i++) {
507 twl = workloads[i];
508 if (!strcmp(twl->name, work))
509 return twl->func(argc, argv);
510 }
511
512 pr_info("No workload found: %s\n", work);
513 return -1;
514}
515
516static int perf_test__config(const char *var, const char *value,
517 void *data __maybe_unused)
518{
519 if (!strcmp(var, "annotate.objdump"))
520 test_objdump_path = value;
521
522 return 0;
523}
524
525int cmd_test(int argc, const char **argv)
526{
527 const char *test_usage[] = {
528 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
529 NULL,
530 };
531 const char *skip = NULL;
532 const char *workload = NULL;
533 const struct option test_options[] = {
534 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
535 OPT_INCR('v', "verbose", &verbose,
536 "be more verbose (show symbol address, etc)"),
537 OPT_BOOLEAN('F', "dont-fork", &dont_fork,
538 "Do not fork for testcase"),
539 OPT_STRING('w', "workload", &workload, "work", "workload to run for testing"),
540 OPT_STRING(0, "dso", &dso_to_test, "dso", "dso to test"),
541 OPT_STRING(0, "objdump", &test_objdump_path, "path",
542 "objdump binary to use for disassembly and annotations"),
543 OPT_END()
544 };
545 const char * const test_subcommands[] = { "list", NULL };
546 struct intlist *skiplist = NULL;
547 int ret = hists__init();
548
549 if (ret < 0)
550 return ret;
551
552 perf_config(perf_test__config, NULL);
553
554 /* Unbuffered output */
555 setvbuf(stdout, NULL, _IONBF, 0);
556
557 argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
558 if (argc >= 1 && !strcmp(argv[0], "list"))
559 return perf_test__list(argc - 1, argv + 1);
560
561 if (workload)
562 return run_workload(workload, argc, argv);
563
564 symbol_conf.priv_size = sizeof(int);
565 symbol_conf.try_vmlinux_path = true;
566
567 if (symbol__init(NULL) < 0)
568 return -1;
569
570 if (skip != NULL)
571 skiplist = intlist__new(skip);
572 /*
573 * Tests that create BPF maps, for instance, need more than the 64K
574 * default:
575 */
576 rlimit__bump_memlock();
577
578 return __cmd_test(argc, argv, skiplist);
579}