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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 "hist.h"
18#include "intlist.h"
19#include "tests.h"
20#include "debug.h"
21#include "color.h"
22#include <subcmd/parse-options.h>
23#include "string2.h"
24#include "symbol.h"
25#include "util/rlimit.h"
26#include <linux/kernel.h>
27#include <linux/string.h>
28#include <subcmd/exec-cmd.h>
29#include <linux/zalloc.h>
30
31static bool dont_fork;
32
33struct test __weak arch_tests[] = {
34 {
35 .func = NULL,
36 },
37};
38
39static struct test generic_tests[] = {
40 {
41 .desc = "vmlinux symtab matches kallsyms",
42 .func = test__vmlinux_matches_kallsyms,
43 },
44 {
45 .desc = "Detect openat syscall event",
46 .func = test__openat_syscall_event,
47 },
48 {
49 .desc = "Detect openat syscall event on all cpus",
50 .func = test__openat_syscall_event_on_all_cpus,
51 },
52 {
53 .desc = "Read samples using the mmap interface",
54 .func = test__basic_mmap,
55 },
56 {
57 .desc = "Test data source output",
58 .func = test__mem,
59 },
60 {
61 .desc = "Parse event definition strings",
62 .func = test__parse_events,
63 },
64 {
65 .desc = "Simple expression parser",
66 .func = test__expr,
67 },
68 {
69 .desc = "PERF_RECORD_* events & perf_sample fields",
70 .func = test__PERF_RECORD,
71 },
72 {
73 .desc = "Parse perf pmu format",
74 .func = test__pmu,
75 },
76 {
77 .desc = "PMU events",
78 .func = test__pmu_events,
79 .subtest = {
80 .skip_if_fail = false,
81 .get_nr = test__pmu_events_subtest_get_nr,
82 .get_desc = test__pmu_events_subtest_get_desc,
83 .skip_reason = test__pmu_events_subtest_skip_reason,
84 },
85
86 },
87 {
88 .desc = "DSO data read",
89 .func = test__dso_data,
90 },
91 {
92 .desc = "DSO data cache",
93 .func = test__dso_data_cache,
94 },
95 {
96 .desc = "DSO data reopen",
97 .func = test__dso_data_reopen,
98 },
99 {
100 .desc = "Roundtrip evsel->name",
101 .func = test__perf_evsel__roundtrip_name_test,
102 },
103 {
104 .desc = "Parse sched tracepoints fields",
105 .func = test__perf_evsel__tp_sched_test,
106 },
107 {
108 .desc = "syscalls:sys_enter_openat event fields",
109 .func = test__syscall_openat_tp_fields,
110 },
111 {
112 .desc = "Setup struct perf_event_attr",
113 .func = test__attr,
114 },
115 {
116 .desc = "Match and link multiple hists",
117 .func = test__hists_link,
118 },
119 {
120 .desc = "'import perf' in python",
121 .func = test__python_use,
122 },
123 {
124 .desc = "Breakpoint overflow signal handler",
125 .func = test__bp_signal,
126 .is_supported = test__bp_signal_is_supported,
127 },
128 {
129 .desc = "Breakpoint overflow sampling",
130 .func = test__bp_signal_overflow,
131 .is_supported = test__bp_signal_is_supported,
132 },
133 {
134 .desc = "Breakpoint accounting",
135 .func = test__bp_accounting,
136 .is_supported = test__bp_account_is_supported,
137 },
138 {
139 .desc = "Watchpoint",
140 .func = test__wp,
141 .is_supported = test__wp_is_supported,
142 .subtest = {
143 .skip_if_fail = false,
144 .get_nr = test__wp_subtest_get_nr,
145 .get_desc = test__wp_subtest_get_desc,
146 .skip_reason = test__wp_subtest_skip_reason,
147 },
148 },
149 {
150 .desc = "Number of exit events of a simple workload",
151 .func = test__task_exit,
152 },
153 {
154 .desc = "Software clock events period values",
155 .func = test__sw_clock_freq,
156 },
157 {
158 .desc = "Object code reading",
159 .func = test__code_reading,
160 },
161 {
162 .desc = "Sample parsing",
163 .func = test__sample_parsing,
164 },
165 {
166 .desc = "Use a dummy software event to keep tracking",
167 .func = test__keep_tracking,
168 },
169 {
170 .desc = "Parse with no sample_id_all bit set",
171 .func = test__parse_no_sample_id_all,
172 },
173 {
174 .desc = "Filter hist entries",
175 .func = test__hists_filter,
176 },
177 {
178 .desc = "Lookup mmap thread",
179 .func = test__mmap_thread_lookup,
180 },
181 {
182 .desc = "Share thread maps",
183 .func = test__thread_maps_share,
184 },
185 {
186 .desc = "Sort output of hist entries",
187 .func = test__hists_output,
188 },
189 {
190 .desc = "Cumulate child hist entries",
191 .func = test__hists_cumulate,
192 },
193 {
194 .desc = "Track with sched_switch",
195 .func = test__switch_tracking,
196 },
197 {
198 .desc = "Filter fds with revents mask in a fdarray",
199 .func = test__fdarray__filter,
200 },
201 {
202 .desc = "Add fd to a fdarray, making it autogrow",
203 .func = test__fdarray__add,
204 },
205 {
206 .desc = "kmod_path__parse",
207 .func = test__kmod_path__parse,
208 },
209 {
210 .desc = "Thread map",
211 .func = test__thread_map,
212 },
213 {
214 .desc = "LLVM search and compile",
215 .func = test__llvm,
216 .subtest = {
217 .skip_if_fail = true,
218 .get_nr = test__llvm_subtest_get_nr,
219 .get_desc = test__llvm_subtest_get_desc,
220 },
221 },
222 {
223 .desc = "Session topology",
224 .func = test__session_topology,
225 },
226 {
227 .desc = "BPF filter",
228 .func = test__bpf,
229 .subtest = {
230 .skip_if_fail = true,
231 .get_nr = test__bpf_subtest_get_nr,
232 .get_desc = test__bpf_subtest_get_desc,
233 },
234 },
235 {
236 .desc = "Synthesize thread map",
237 .func = test__thread_map_synthesize,
238 },
239 {
240 .desc = "Remove thread map",
241 .func = test__thread_map_remove,
242 },
243 {
244 .desc = "Synthesize cpu map",
245 .func = test__cpu_map_synthesize,
246 },
247 {
248 .desc = "Synthesize stat config",
249 .func = test__synthesize_stat_config,
250 },
251 {
252 .desc = "Synthesize stat",
253 .func = test__synthesize_stat,
254 },
255 {
256 .desc = "Synthesize stat round",
257 .func = test__synthesize_stat_round,
258 },
259 {
260 .desc = "Synthesize attr update",
261 .func = test__event_update,
262 },
263 {
264 .desc = "Event times",
265 .func = test__event_times,
266 },
267 {
268 .desc = "Read backward ring buffer",
269 .func = test__backward_ring_buffer,
270 },
271 {
272 .desc = "Print cpu map",
273 .func = test__cpu_map_print,
274 },
275 {
276 .desc = "Merge cpu map",
277 .func = test__cpu_map_merge,
278 },
279
280 {
281 .desc = "Probe SDT events",
282 .func = test__sdt_event,
283 },
284 {
285 .desc = "is_printable_array",
286 .func = test__is_printable_array,
287 },
288 {
289 .desc = "Print bitmap",
290 .func = test__bitmap_print,
291 },
292 {
293 .desc = "perf hooks",
294 .func = test__perf_hooks,
295 },
296 {
297 .desc = "builtin clang support",
298 .func = test__clang,
299 .subtest = {
300 .skip_if_fail = true,
301 .get_nr = test__clang_subtest_get_nr,
302 .get_desc = test__clang_subtest_get_desc,
303 }
304 },
305 {
306 .desc = "unit_number__scnprintf",
307 .func = test__unit_number__scnprint,
308 },
309 {
310 .desc = "mem2node",
311 .func = test__mem2node,
312 },
313 {
314 .desc = "time utils",
315 .func = test__time_utils,
316 },
317 {
318 .desc = "Test jit_write_elf",
319 .func = test__jit_write_elf,
320 },
321 {
322 .desc = "Test libpfm4 support",
323 .func = test__pfm,
324 .subtest = {
325 .skip_if_fail = true,
326 .get_nr = test__pfm_subtest_get_nr,
327 .get_desc = test__pfm_subtest_get_desc,
328 }
329 },
330 {
331 .desc = "Test api io",
332 .func = test__api_io,
333 },
334 {
335 .desc = "maps__merge_in",
336 .func = test__maps__merge_in,
337 },
338 {
339 .desc = "Demangle Java",
340 .func = test__demangle_java,
341 },
342 {
343 .desc = "Demangle OCaml",
344 .func = test__demangle_ocaml,
345 },
346 {
347 .desc = "Parse and process metrics",
348 .func = test__parse_metric,
349 },
350 {
351 .desc = "PE file support",
352 .func = test__pe_file_parsing,
353 },
354 {
355 .desc = "Event expansion for cgroups",
356 .func = test__expand_cgroup_events,
357 },
358 {
359 .desc = "Convert perf time to TSC",
360 .func = test__perf_time_to_tsc,
361 .is_supported = test__tsc_is_supported,
362 },
363 {
364 .func = NULL,
365 },
366};
367
368static struct test *tests[] = {
369 generic_tests,
370 arch_tests,
371};
372
373static bool perf_test__matches(const char *desc, int curr, int argc, const char *argv[])
374{
375 int i;
376
377 if (argc == 0)
378 return true;
379
380 for (i = 0; i < argc; ++i) {
381 char *end;
382 long nr = strtoul(argv[i], &end, 10);
383
384 if (*end == '\0') {
385 if (nr == curr + 1)
386 return true;
387 continue;
388 }
389
390 if (strcasestr(desc, argv[i]))
391 return true;
392 }
393
394 return false;
395}
396
397static int run_test(struct test *test, int subtest)
398{
399 int status, err = -1, child = dont_fork ? 0 : fork();
400 char sbuf[STRERR_BUFSIZE];
401
402 if (child < 0) {
403 pr_err("failed to fork test: %s\n",
404 str_error_r(errno, sbuf, sizeof(sbuf)));
405 return -1;
406 }
407
408 if (!child) {
409 if (!dont_fork) {
410 pr_debug("test child forked, pid %d\n", getpid());
411
412 if (verbose <= 0) {
413 int nullfd = open("/dev/null", O_WRONLY);
414
415 if (nullfd >= 0) {
416 close(STDERR_FILENO);
417 close(STDOUT_FILENO);
418
419 dup2(nullfd, STDOUT_FILENO);
420 dup2(STDOUT_FILENO, STDERR_FILENO);
421 close(nullfd);
422 }
423 } else {
424 signal(SIGSEGV, sighandler_dump_stack);
425 signal(SIGFPE, sighandler_dump_stack);
426 }
427 }
428
429 err = test->func(test, subtest);
430 if (!dont_fork)
431 exit(err);
432 }
433
434 if (!dont_fork) {
435 wait(&status);
436
437 if (WIFEXITED(status)) {
438 err = (signed char)WEXITSTATUS(status);
439 pr_debug("test child finished with %d\n", err);
440 } else if (WIFSIGNALED(status)) {
441 err = -1;
442 pr_debug("test child interrupted\n");
443 }
444 }
445
446 return err;
447}
448
449#define for_each_test(j, t) \
450 for (j = 0; j < ARRAY_SIZE(tests); j++) \
451 for (t = &tests[j][0]; t->func; t++)
452
453static int test_and_print(struct test *t, bool force_skip, int subtest)
454{
455 int err;
456
457 if (!force_skip) {
458 pr_debug("\n--- start ---\n");
459 err = run_test(t, subtest);
460 pr_debug("---- end ----\n");
461 } else {
462 pr_debug("\n--- force skipped ---\n");
463 err = TEST_SKIP;
464 }
465
466 if (!t->subtest.get_nr)
467 pr_debug("%s:", t->desc);
468 else
469 pr_debug("%s subtest %d:", t->desc, subtest + 1);
470
471 switch (err) {
472 case TEST_OK:
473 pr_info(" Ok\n");
474 break;
475 case TEST_SKIP: {
476 const char *skip_reason = NULL;
477 if (t->subtest.skip_reason)
478 skip_reason = t->subtest.skip_reason(subtest);
479 if (skip_reason)
480 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", skip_reason);
481 else
482 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
483 }
484 break;
485 case TEST_FAIL:
486 default:
487 color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
488 break;
489 }
490
491 return err;
492}
493
494static const char *shell_test__description(char *description, size_t size,
495 const char *path, const char *name)
496{
497 FILE *fp;
498 char filename[PATH_MAX];
499
500 path__join(filename, sizeof(filename), path, name);
501 fp = fopen(filename, "r");
502 if (!fp)
503 return NULL;
504
505 /* Skip shebang */
506 while (fgetc(fp) != '\n');
507
508 description = fgets(description, size, fp);
509 fclose(fp);
510
511 return description ? strim(description + 1) : NULL;
512}
513
514#define for_each_shell_test(entlist, nr, base, ent) \
515 for (int __i = 0; __i < nr && (ent = entlist[__i]); __i++) \
516 if (!is_directory(base, ent) && ent->d_name[0] != '.')
517
518static const char *shell_tests__dir(char *path, size_t size)
519{
520 const char *devel_dirs[] = { "./tools/perf/tests", "./tests", };
521 char *exec_path;
522 unsigned int i;
523
524 for (i = 0; i < ARRAY_SIZE(devel_dirs); ++i) {
525 struct stat st;
526 if (!lstat(devel_dirs[i], &st)) {
527 scnprintf(path, size, "%s/shell", devel_dirs[i]);
528 if (!lstat(devel_dirs[i], &st))
529 return path;
530 }
531 }
532
533 /* Then installed path. */
534 exec_path = get_argv_exec_path();
535 scnprintf(path, size, "%s/tests/shell", exec_path);
536 free(exec_path);
537 return path;
538}
539
540static int shell_tests__max_desc_width(void)
541{
542 struct dirent **entlist;
543 struct dirent *ent;
544 int n_dirs, e;
545 char path_dir[PATH_MAX];
546 const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
547 int width = 0;
548
549 if (path == NULL)
550 return -1;
551
552 n_dirs = scandir(path, &entlist, NULL, alphasort);
553 if (n_dirs == -1)
554 return -1;
555
556 for_each_shell_test(entlist, n_dirs, path, ent) {
557 char bf[256];
558 const char *desc = shell_test__description(bf, sizeof(bf), path, ent->d_name);
559
560 if (desc) {
561 int len = strlen(desc);
562
563 if (width < len)
564 width = len;
565 }
566 }
567
568 for (e = 0; e < n_dirs; e++)
569 zfree(&entlist[e]);
570 free(entlist);
571 return width;
572}
573
574struct shell_test {
575 const char *dir;
576 const char *file;
577};
578
579static int shell_test__run(struct test *test, int subdir __maybe_unused)
580{
581 int err;
582 char script[PATH_MAX];
583 struct shell_test *st = test->priv;
584
585 path__join(script, sizeof(script) - 3, st->dir, st->file);
586
587 if (verbose)
588 strncat(script, " -v", sizeof(script) - strlen(script) - 1);
589
590 err = system(script);
591 if (!err)
592 return TEST_OK;
593
594 return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
595}
596
597static int run_shell_tests(int argc, const char *argv[], int i, int width)
598{
599 struct dirent **entlist;
600 struct dirent *ent;
601 int n_dirs, e;
602 char path_dir[PATH_MAX];
603 struct shell_test st = {
604 .dir = shell_tests__dir(path_dir, sizeof(path_dir)),
605 };
606
607 if (st.dir == NULL)
608 return -1;
609
610 n_dirs = scandir(st.dir, &entlist, NULL, alphasort);
611 if (n_dirs == -1) {
612 pr_err("failed to open shell test directory: %s\n",
613 st.dir);
614 return -1;
615 }
616
617 for_each_shell_test(entlist, n_dirs, st.dir, ent) {
618 int curr = i++;
619 char desc[256];
620 struct test test = {
621 .desc = shell_test__description(desc, sizeof(desc), st.dir, ent->d_name),
622 .func = shell_test__run,
623 .priv = &st,
624 };
625
626 if (!perf_test__matches(test.desc, curr, argc, argv))
627 continue;
628
629 st.file = ent->d_name;
630 pr_info("%2d: %-*s:", i, width, test.desc);
631 test_and_print(&test, false, -1);
632 }
633
634 for (e = 0; e < n_dirs; e++)
635 zfree(&entlist[e]);
636 free(entlist);
637 return 0;
638}
639
640static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
641{
642 struct test *t;
643 unsigned int j;
644 int i = 0;
645 int width = shell_tests__max_desc_width();
646
647 for_each_test(j, t) {
648 int len = strlen(t->desc);
649
650 if (width < len)
651 width = len;
652 }
653
654 for_each_test(j, t) {
655 int curr = i++, err;
656 int subi;
657
658 if (!perf_test__matches(t->desc, curr, argc, argv)) {
659 bool skip = true;
660 int subn;
661
662 if (!t->subtest.get_nr)
663 continue;
664
665 subn = t->subtest.get_nr();
666
667 for (subi = 0; subi < subn; subi++) {
668 if (perf_test__matches(t->subtest.get_desc(subi), curr, argc, argv))
669 skip = false;
670 }
671
672 if (skip)
673 continue;
674 }
675
676 if (t->is_supported && !t->is_supported()) {
677 pr_debug("%2d: %-*s: Disabled\n", i, width, t->desc);
678 continue;
679 }
680
681 pr_info("%2d: %-*s:", i, width, t->desc);
682
683 if (intlist__find(skiplist, i)) {
684 color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
685 continue;
686 }
687
688 if (!t->subtest.get_nr) {
689 test_and_print(t, false, -1);
690 } else {
691 int subn = t->subtest.get_nr();
692 /*
693 * minus 2 to align with normal testcases.
694 * For subtest we print additional '.x' in number.
695 * for example:
696 *
697 * 35: Test LLVM searching and compiling :
698 * 35.1: Basic BPF llvm compiling test : Ok
699 */
700 int subw = width > 2 ? width - 2 : width;
701 bool skip = false;
702
703 if (subn <= 0) {
704 color_fprintf(stderr, PERF_COLOR_YELLOW,
705 " Skip (not compiled in)\n");
706 continue;
707 }
708 pr_info("\n");
709
710 for (subi = 0; subi < subn; subi++) {
711 int len = strlen(t->subtest.get_desc(subi));
712
713 if (subw < len)
714 subw = len;
715 }
716
717 for (subi = 0; subi < subn; subi++) {
718 if (!perf_test__matches(t->subtest.get_desc(subi), curr, argc, argv))
719 continue;
720
721 pr_info("%2d.%1d: %-*s:", i, subi + 1, subw,
722 t->subtest.get_desc(subi));
723 err = test_and_print(t, skip, subi);
724 if (err != TEST_OK && t->subtest.skip_if_fail)
725 skip = true;
726 }
727 }
728 }
729
730 return run_shell_tests(argc, argv, i, width);
731}
732
733static int perf_test__list_shell(int argc, const char **argv, int i)
734{
735 struct dirent **entlist;
736 struct dirent *ent;
737 int n_dirs, e;
738 char path_dir[PATH_MAX];
739 const char *path = shell_tests__dir(path_dir, sizeof(path_dir));
740
741 if (path == NULL)
742 return -1;
743
744 n_dirs = scandir(path, &entlist, NULL, alphasort);
745 if (n_dirs == -1)
746 return -1;
747
748 for_each_shell_test(entlist, n_dirs, path, ent) {
749 int curr = i++;
750 char bf[256];
751 struct test t = {
752 .desc = shell_test__description(bf, sizeof(bf), path, ent->d_name),
753 };
754
755 if (!perf_test__matches(t.desc, curr, argc, argv))
756 continue;
757
758 pr_info("%2d: %s\n", i, t.desc);
759
760 }
761
762 for (e = 0; e < n_dirs; e++)
763 zfree(&entlist[e]);
764 free(entlist);
765 return 0;
766}
767
768static int perf_test__list(int argc, const char **argv)
769{
770 unsigned int j;
771 struct test *t;
772 int i = 0;
773
774 for_each_test(j, t) {
775 int curr = i++;
776
777 if (!perf_test__matches(t->desc, curr, argc, argv) ||
778 (t->is_supported && !t->is_supported()))
779 continue;
780
781 pr_info("%2d: %s\n", i, t->desc);
782
783 if (t->subtest.get_nr) {
784 int subn = t->subtest.get_nr();
785 int subi;
786
787 for (subi = 0; subi < subn; subi++)
788 pr_info("%2d:%1d: %s\n", i, subi + 1,
789 t->subtest.get_desc(subi));
790 }
791 }
792
793 perf_test__list_shell(argc, argv, i);
794
795 return 0;
796}
797
798int cmd_test(int argc, const char **argv)
799{
800 const char *test_usage[] = {
801 "perf test [<options>] [{list <test-name-fragment>|[<test-name-fragments>|<test-numbers>]}]",
802 NULL,
803 };
804 const char *skip = NULL;
805 const struct option test_options[] = {
806 OPT_STRING('s', "skip", &skip, "tests", "tests to skip"),
807 OPT_INCR('v', "verbose", &verbose,
808 "be more verbose (show symbol address, etc)"),
809 OPT_BOOLEAN('F', "dont-fork", &dont_fork,
810 "Do not fork for testcase"),
811 OPT_END()
812 };
813 const char * const test_subcommands[] = { "list", NULL };
814 struct intlist *skiplist = NULL;
815 int ret = hists__init();
816
817 if (ret < 0)
818 return ret;
819
820 argc = parse_options_subcommand(argc, argv, test_options, test_subcommands, test_usage, 0);
821 if (argc >= 1 && !strcmp(argv[0], "list"))
822 return perf_test__list(argc - 1, argv + 1);
823
824 symbol_conf.priv_size = sizeof(int);
825 symbol_conf.sort_by_name = true;
826 symbol_conf.try_vmlinux_path = true;
827
828 if (symbol__init(NULL) < 0)
829 return -1;
830
831 if (skip != NULL)
832 skiplist = intlist__new(skip);
833 /*
834 * Tests that create BPF maps, for instance, need more than the 64K
835 * default:
836 */
837 rlimit__bump_memlock();
838
839 return __cmd_test(argc, argv, skiplist);
840}