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-rw-r--r--tools/perf/tests/builtin-test.c523
1 files changed, 523 insertions, 0 deletions
diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c
new file mode 100644
index 000000000..7122eae1d
--- /dev/null
+++ b/tools/perf/tests/builtin-test.c
@@ -0,0 +1,523 @@
+// 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);
+}
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