From 8c25df7af322040fdf5041e912af7cc810b0f86d Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Tue, 1 Oct 2024 20:20:13 -0700 Subject: [PATCH] perf tests: Add tool PMU test Ensure parsing with and without PMU creates events with the expected config values. This ensures the tool.json doesn't get out of sync with tool_pmu_event enum. Signed-off-by: Ian Rogers Acked-by: Namhyung Kim Link: https://lore.kernel.org/r/20241002032016.333748-11-irogers@google.com Signed-off-by: Namhyung Kim --- tools/perf/tests/Build | 1 + tools/perf/tests/builtin-test.c | 1 + tools/perf/tests/tests.h | 1 + tools/perf/tests/tool_pmu.c | 111 ++++++++++++++++++++++++++++++++ 4 files changed, 114 insertions(+) create mode 100644 tools/perf/tests/tool_pmu.c diff --git a/tools/perf/tests/Build b/tools/perf/tests/Build index 5671ee530019..a771e4928247 100644 --- a/tools/perf/tests/Build +++ b/tools/perf/tests/Build @@ -67,6 +67,7 @@ perf-test-y += sigtrap.o perf-test-y += event_groups.o perf-test-y += symbols.o perf-test-y += util.o +perf-test-y += tool_pmu.o ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc)) perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o diff --git a/tools/perf/tests/builtin-test.c b/tools/perf/tests/builtin-test.c index 470a9709427d..3b30f258c395 100644 --- a/tools/perf/tests/builtin-test.c +++ b/tools/perf/tests/builtin-test.c @@ -73,6 +73,7 @@ static struct test_suite *generic_tests[] = { &suite__PERF_RECORD, &suite__pmu, &suite__pmu_events, + &suite__tool_pmu, &suite__dso_data, &suite__perf_evsel__roundtrip_name_test, #ifdef HAVE_LIBTRACEEVENT diff --git a/tools/perf/tests/tests.h b/tools/perf/tests/tests.h index 6ea2be86b7bf..1ed76d4156b6 100644 --- a/tools/perf/tests/tests.h +++ b/tools/perf/tests/tests.h @@ -83,6 +83,7 @@ DECLARE_SUITE(perf_evsel__tp_sched_test); DECLARE_SUITE(syscall_openat_tp_fields); DECLARE_SUITE(pmu); DECLARE_SUITE(pmu_events); +DECLARE_SUITE(tool_pmu); DECLARE_SUITE(attr); DECLARE_SUITE(dso_data); DECLARE_SUITE(dso_data_cache); diff --git a/tools/perf/tests/tool_pmu.c b/tools/perf/tests/tool_pmu.c new file mode 100644 index 000000000000..94d0dd8fd3cb --- /dev/null +++ b/tools/perf/tests/tool_pmu.c @@ -0,0 +1,111 @@ +// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause) +#include "debug.h" +#include "evlist.h" +#include "parse-events.h" +#include "tests.h" +#include "tool_pmu.h" + +static int do_test(enum tool_pmu_event ev, bool with_pmu) +{ + struct evlist *evlist = evlist__new(); + struct evsel *evsel; + struct parse_events_error err; + int ret; + char str[128]; + bool found = false; + + if (!evlist) { + pr_err("evlist allocation failed\n"); + return TEST_FAIL; + } + + if (with_pmu) + snprintf(str, sizeof(str), "tool/%s/", tool_pmu__event_to_str(ev)); + else + strncpy(str, tool_pmu__event_to_str(ev), sizeof(str)); + + parse_events_error__init(&err); + ret = parse_events(evlist, str, &err); + if (ret) { + evlist__delete(evlist); + if (tool_pmu__skip_event(tool_pmu__event_to_str(ev))) { + ret = TEST_OK; + goto out; + } + + pr_debug("FAILED %s:%d failed to parse event '%s', err %d\n", + __FILE__, __LINE__, str, ret); + parse_events_error__print(&err, str); + ret = TEST_FAIL; + goto out; + } + + ret = TEST_OK; + if (with_pmu ? (evlist->core.nr_entries != 1) : (evlist->core.nr_entries < 1)) { + pr_debug("FAILED %s:%d Unexpected number of events for '%s' of %d\n", + __FILE__, __LINE__, str, evlist->core.nr_entries); + ret = TEST_FAIL; + goto out; + } + + evlist__for_each_entry(evlist, evsel) { + if (perf_pmu__is_tool(evsel->pmu)) { + if (evsel->core.attr.config != ev) { + pr_debug("FAILED %s:%d Unexpected config for '%s', %lld != %d\n", + __FILE__, __LINE__, str, evsel->core.attr.config, ev); + ret = TEST_FAIL; + goto out; + } + found = true; + } + } + + if (!found && !tool_pmu__skip_event(tool_pmu__event_to_str(ev))) { + pr_debug("FAILED %s:%d Didn't find tool event '%s' in parsed evsels\n", + __FILE__, __LINE__, str); + ret = TEST_FAIL; + } + +out: + evlist__delete(evlist); + return ret; +} + +static int test__tool_pmu_without_pmu(struct test_suite *test __maybe_unused, + int subtest __maybe_unused) +{ + int i; + + tool_pmu__for_each_event(i) { + int ret = do_test(i, /*with_pmu=*/false); + + if (ret != TEST_OK) + return ret; + } + return TEST_OK; +} + +static int test__tool_pmu_with_pmu(struct test_suite *test __maybe_unused, + int subtest __maybe_unused) +{ + int i; + + tool_pmu__for_each_event(i) { + int ret = do_test(i, /*with_pmu=*/true); + + if (ret != TEST_OK) + return ret; + } + return TEST_OK; +} + +static struct test_case tests__tool_pmu[] = { + TEST_CASE("Parsing without PMU name", tool_pmu_without_pmu), + TEST_CASE("Parsing with PMU name", tool_pmu_with_pmu), + { .name = NULL, } +}; + +struct test_suite suite__tool_pmu = { + .desc = "Tool PMU", + .test_cases = tests__tool_pmu, +}; -- 2.25.1