563 lines
12 KiB
C
563 lines
12 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* builtin-test.c
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*
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* Builtin regression testing command: ever growing number of sanity tests
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*/
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#include <fcntl.h>
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#include <errno.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <dirent.h>
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#include <sys/wait.h>
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#include <sys/stat.h>
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#include "builtin.h"
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#include "hist.h"
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#include "intlist.h"
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#include "tests.h"
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#include "debug.h"
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#include "color.h"
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#include <subcmd/parse-options.h>
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#include "string2.h"
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#include "symbol.h"
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#include "util/rlimit.h"
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <subcmd/exec-cmd.h>
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#include <linux/zalloc.h>
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#include "builtin-test-list.h"
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static bool dont_fork;
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const char *dso_to_test;
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struct test_suite *__weak arch_tests[] = {
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NULL,
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};
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static struct test_suite *generic_tests[] = {
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&suite__vmlinux_matches_kallsyms,
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#ifdef HAVE_LIBTRACEEVENT
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&suite__openat_syscall_event,
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&suite__openat_syscall_event_on_all_cpus,
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&suite__basic_mmap,
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#endif
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&suite__mem,
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&suite__parse_events,
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&suite__expr,
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&suite__PERF_RECORD,
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&suite__pmu,
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&suite__pmu_events,
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&suite__dso_data,
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&suite__dso_data_cache,
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&suite__dso_data_reopen,
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&suite__perf_evsel__roundtrip_name_test,
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#ifdef HAVE_LIBTRACEEVENT
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&suite__perf_evsel__tp_sched_test,
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&suite__syscall_openat_tp_fields,
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#endif
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&suite__attr,
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&suite__hists_link,
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&suite__python_use,
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&suite__bp_signal,
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&suite__bp_signal_overflow,
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&suite__bp_accounting,
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&suite__wp,
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&suite__task_exit,
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&suite__sw_clock_freq,
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&suite__code_reading,
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&suite__sample_parsing,
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&suite__keep_tracking,
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&suite__parse_no_sample_id_all,
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&suite__hists_filter,
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&suite__mmap_thread_lookup,
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&suite__thread_maps_share,
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&suite__hists_output,
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&suite__hists_cumulate,
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#ifdef HAVE_LIBTRACEEVENT
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&suite__switch_tracking,
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#endif
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&suite__fdarray__filter,
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&suite__fdarray__add,
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&suite__kmod_path__parse,
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&suite__thread_map,
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&suite__llvm,
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&suite__session_topology,
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&suite__bpf,
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&suite__thread_map_synthesize,
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&suite__thread_map_remove,
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&suite__cpu_map_synthesize,
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&suite__synthesize_stat_config,
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&suite__synthesize_stat,
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&suite__synthesize_stat_round,
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&suite__event_update,
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&suite__event_times,
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&suite__backward_ring_buffer,
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&suite__cpu_map_print,
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&suite__cpu_map_merge,
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&suite__sdt_event,
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&suite__is_printable_array,
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&suite__bitmap_print,
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&suite__perf_hooks,
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&suite__clang,
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&suite__unit_number__scnprint,
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&suite__mem2node,
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&suite__time_utils,
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&suite__jit_write_elf,
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&suite__pfm,
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&suite__api_io,
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&suite__maps__merge_in,
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&suite__demangle_java,
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&suite__demangle_ocaml,
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&suite__parse_metric,
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&suite__pe_file_parsing,
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&suite__expand_cgroup_events,
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&suite__perf_time_to_tsc,
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&suite__dlfilter,
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&suite__sigtrap,
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&suite__event_groups,
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&suite__symbols,
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NULL,
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};
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static struct test_suite **tests[] = {
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generic_tests,
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arch_tests,
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};
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static struct test_workload *workloads[] = {
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&workload__noploop,
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&workload__thloop,
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&workload__leafloop,
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&workload__sqrtloop,
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&workload__brstack,
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&workload__datasym,
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};
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static int num_subtests(const struct test_suite *t)
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{
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int num;
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if (!t->test_cases)
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return 0;
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num = 0;
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while (t->test_cases[num].name)
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num++;
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return num;
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}
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static bool has_subtests(const struct test_suite *t)
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{
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return num_subtests(t) > 1;
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}
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static const char *skip_reason(const struct test_suite *t, int subtest)
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{
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if (!t->test_cases)
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return NULL;
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return t->test_cases[subtest >= 0 ? subtest : 0].skip_reason;
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}
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static const char *test_description(const struct test_suite *t, int subtest)
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{
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if (t->test_cases && subtest >= 0)
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return t->test_cases[subtest].desc;
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return t->desc;
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}
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static test_fnptr test_function(const struct test_suite *t, int subtest)
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{
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if (subtest <= 0)
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return t->test_cases[0].run_case;
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return t->test_cases[subtest].run_case;
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}
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static bool perf_test__matches(const char *desc, int curr, int argc, const char *argv[])
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{
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int i;
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if (argc == 0)
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return true;
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for (i = 0; i < argc; ++i) {
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char *end;
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long nr = strtoul(argv[i], &end, 10);
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if (*end == '\0') {
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if (nr == curr + 1)
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return true;
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continue;
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}
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if (strcasestr(desc, argv[i]))
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return true;
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}
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return false;
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}
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static int run_test(struct test_suite *test, int subtest)
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{
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int status, err = -1, child = dont_fork ? 0 : fork();
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char sbuf[STRERR_BUFSIZE];
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if (child < 0) {
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pr_err("failed to fork test: %s\n",
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str_error_r(errno, sbuf, sizeof(sbuf)));
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return -1;
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}
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if (!child) {
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if (!dont_fork) {
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pr_debug("test child forked, pid %d\n", getpid());
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if (verbose <= 0) {
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int nullfd = open("/dev/null", O_WRONLY);
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if (nullfd >= 0) {
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close(STDERR_FILENO);
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close(STDOUT_FILENO);
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dup2(nullfd, STDOUT_FILENO);
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dup2(STDOUT_FILENO, STDERR_FILENO);
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close(nullfd);
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}
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} else {
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signal(SIGSEGV, sighandler_dump_stack);
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signal(SIGFPE, sighandler_dump_stack);
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}
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}
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err = test_function(test, subtest)(test, subtest);
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if (!dont_fork)
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exit(err);
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}
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if (!dont_fork) {
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wait(&status);
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if (WIFEXITED(status)) {
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err = (signed char)WEXITSTATUS(status);
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pr_debug("test child finished with %d\n", err);
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} else if (WIFSIGNALED(status)) {
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err = -1;
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pr_debug("test child interrupted\n");
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}
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}
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return err;
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}
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#define for_each_test(j, k, t) \
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for (j = 0; j < ARRAY_SIZE(tests); j++) \
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for (k = 0, t = tests[j][k]; tests[j][k]; k++, t = tests[j][k])
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static int test_and_print(struct test_suite *t, int subtest)
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{
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int err;
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pr_debug("\n--- start ---\n");
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err = run_test(t, subtest);
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pr_debug("---- end ----\n");
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if (!has_subtests(t))
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pr_debug("%s:", t->desc);
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else
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pr_debug("%s subtest %d:", t->desc, subtest + 1);
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switch (err) {
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case TEST_OK:
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pr_info(" Ok\n");
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break;
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case TEST_SKIP: {
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const char *reason = skip_reason(t, subtest);
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if (reason)
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color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (%s)\n", reason);
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else
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color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip\n");
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}
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break;
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case TEST_FAIL:
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default:
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color_fprintf(stderr, PERF_COLOR_RED, " FAILED!\n");
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break;
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}
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return err;
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}
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struct shell_test {
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const char *dir;
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const char *file;
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};
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static int shell_test__run(struct test_suite *test, int subdir __maybe_unused)
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{
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int err;
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char script[PATH_MAX];
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struct shell_test *st = test->priv;
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path__join(script, sizeof(script) - 3, st->dir, st->file);
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if (verbose > 0)
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strncat(script, " -v", sizeof(script) - strlen(script) - 1);
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err = system(script);
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if (!err)
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return TEST_OK;
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return WEXITSTATUS(err) == 2 ? TEST_SKIP : TEST_FAIL;
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}
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static int run_shell_tests(int argc, const char *argv[], int i, int width,
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struct intlist *skiplist)
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{
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struct shell_test st;
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const struct script_file *files, *file;
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files = list_script_files();
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if (!files)
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return 0;
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for (file = files; file->dir; file++) {
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int curr = i++;
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struct test_case test_cases[] = {
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{
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.desc = file->desc,
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.run_case = shell_test__run,
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},
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{ .name = NULL, }
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};
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struct test_suite test_suite = {
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.desc = test_cases[0].desc,
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.test_cases = test_cases,
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.priv = &st,
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};
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st.dir = file->dir;
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if (test_suite.desc == NULL ||
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!perf_test__matches(test_suite.desc, curr, argc, argv))
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continue;
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st.file = file->file;
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pr_info("%3d: %-*s:", i, width, test_suite.desc);
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if (intlist__find(skiplist, i)) {
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color_fprintf(stderr, PERF_COLOR_YELLOW, " Skip (user override)\n");
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continue;
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}
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test_and_print(&test_suite, 0);
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}
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return 0;
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}
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static int __cmd_test(int argc, const char *argv[], struct intlist *skiplist)
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{
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struct test_suite *t;
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unsigned int j, k;
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int i = 0;
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int width = list_script_max_width();
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for_each_test(j, k, t) {
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int len = strlen(test_description(t, -1));
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if (width < len)
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width = len;
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}
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for_each_test(j, k, t) {
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int curr = i++;
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int subi;
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if (!perf_test__matches(test_description(t, -1), curr, argc, argv)) {
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bool skip = true;
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int subn;
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subn = num_subtests(t);
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for (subi = 0; subi < subn; subi++) {
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if (perf_test__matches(test_description(t, subi),
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curr, argc, argv))
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skip = false;
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}
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if (skip)
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continue;
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}
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pr_info("%3d: %-*s:", i, width, test_description(t, -1));
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if (intlist__find(skiplist, i)) {
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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;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int run_workload(const char *work, int argc, const char **argv)
|
||
|
|
{
|
||
|
|
unsigned int i = 0;
|
||
|
|
struct test_workload *twl;
|
||
|
|
|
||
|
|
for (i = 0; i < ARRAY_SIZE(workloads); i++) {
|
||
|
|
twl = workloads[i];
|
||
|
|
if (!strcmp(twl->name, work))
|
||
|
|
return twl->func(argc, argv);
|
||
|
|
}
|
||
|
|
|
||
|
|
pr_info("No workload found: %s\n", work);
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
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 char *workload = 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_STRING('w', "workload", &workload, "work", "workload to run for testing"),
|
||
|
|
OPT_STRING(0, "dso", &dso_to_test, "dso", "dso to test"),
|
||
|
|
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);
|
||
|
|
|
||
|
|
if (workload)
|
||
|
|
return run_workload(workload, 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);
|
||
|
|
/*
|
||
|
|
* Tests that create BPF maps, for instance, need more than the 64K
|
||
|
|
* default:
|
||
|
|
*/
|
||
|
|
rlimit__bump_memlock();
|
||
|
|
|
||
|
|
return __cmd_test(argc, argv, skiplist);
|
||
|
|
}
|