From a563c9f3bb8c23416f3e72edfbc75d1a4937f7e0 Mon Sep 17 00:00:00 2001 From: Ian Rogers Date: Thu, 24 Jul 2025 09:33:01 -0700 Subject: [PATCH] perf test: Move PERF_SAMPLE_WEIGHT_STRUCT parsing to common test test__x86_sample_parsing is identical to test__sample_parsing except it explicitly tested PERF_SAMPLE_WEIGHT_STRUCT. Now the parsing code is common move the PERF_SAMPLE_WEIGHT_STRUCT to the common sample parsing test and remove the x86 version. Signed-off-by: Ian Rogers Link: https://lore.kernel.org/r/20250724163302.596743-22-irogers@google.com Signed-off-by: Namhyung Kim --- tools/perf/arch/x86/include/arch-tests.h | 1 - tools/perf/arch/x86/tests/Build | 1 - tools/perf/arch/x86/tests/arch-tests.c | 2 - tools/perf/arch/x86/tests/sample-parsing.c | 125 --------------------- tools/perf/tests/sample-parsing.c | 14 +++ 5 files changed, 14 insertions(+), 129 deletions(-) delete mode 100644 tools/perf/arch/x86/tests/sample-parsing.c diff --git a/tools/perf/arch/x86/include/arch-tests.h b/tools/perf/arch/x86/include/arch-tests.h index 8713e9122d4c..7d65b9e51840 100644 --- a/tools/perf/arch/x86/include/arch-tests.h +++ b/tools/perf/arch/x86/include/arch-tests.h @@ -14,7 +14,6 @@ int test__insn_x86(struct test_suite *test, int subtest); int test__intel_pt_pkt_decoder(struct test_suite *test, int subtest); int test__intel_pt_hybrid_compat(struct test_suite *test, int subtest); int test__bp_modify(struct test_suite *test, int subtest); -int test__x86_sample_parsing(struct test_suite *test, int subtest); int test__amd_ibs_via_core_pmu(struct test_suite *test, int subtest); int test__amd_ibs_period(struct test_suite *test, int subtest); int test__hybrid(struct test_suite *test, int subtest); diff --git a/tools/perf/arch/x86/tests/Build b/tools/perf/arch/x86/tests/Build index 311b6b53d3d8..7790b3e20f4e 100644 --- a/tools/perf/arch/x86/tests/Build +++ b/tools/perf/arch/x86/tests/Build @@ -2,7 +2,6 @@ perf-test-$(CONFIG_DWARF_UNWIND) += regs_load.o perf-test-$(CONFIG_DWARF_UNWIND) += dwarf-unwind.o perf-test-y += arch-tests.o -perf-test-y += sample-parsing.o perf-test-y += hybrid.o perf-test-$(CONFIG_AUXTRACE) += intel-pt-test.o ifeq ($(CONFIG_EXTRA_TESTS),y) diff --git a/tools/perf/arch/x86/tests/arch-tests.c b/tools/perf/arch/x86/tests/arch-tests.c index 29ec1861ccef..8f9cfeaa170f 100644 --- a/tools/perf/arch/x86/tests/arch-tests.c +++ b/tools/perf/arch/x86/tests/arch-tests.c @@ -23,7 +23,6 @@ struct test_suite suite__intel_pt = { #if defined(__x86_64__) DEFINE_SUITE("x86 bp modify", bp_modify); #endif -DEFINE_SUITE("x86 Sample parsing", x86_sample_parsing); DEFINE_SUITE("AMD IBS via core pmu", amd_ibs_via_core_pmu); DEFINE_SUITE_EXCLUSIVE("AMD IBS sample period", amd_ibs_period); static struct test_case hybrid_tests[] = { @@ -49,7 +48,6 @@ struct test_suite *arch_tests[] = { #if defined(__x86_64__) &suite__bp_modify, #endif - &suite__x86_sample_parsing, &suite__amd_ibs_via_core_pmu, &suite__amd_ibs_period, &suite__hybrid, diff --git a/tools/perf/arch/x86/tests/sample-parsing.c b/tools/perf/arch/x86/tests/sample-parsing.c deleted file mode 100644 index 22feec23e53d..000000000000 --- a/tools/perf/arch/x86/tests/sample-parsing.c +++ /dev/null @@ -1,125 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#include -#include -#include -#include -#include -#include -#include - -#include "event.h" -#include "evsel.h" -#include "debug.h" -#include "util/sample.h" -#include "util/synthetic-events.h" - -#include "tests/tests.h" -#include "arch-tests.h" - -#define COMP(m) do { \ - if (s1->m != s2->m) { \ - pr_debug("Samples differ at '"#m"'\n"); \ - return false; \ - } \ -} while (0) - -static bool samples_same(const struct perf_sample *s1, - const struct perf_sample *s2, - u64 type) -{ - if (type & PERF_SAMPLE_WEIGHT_STRUCT) { - COMP(ins_lat); - COMP(weight3); - } - - return true; -} - -static int do_test(u64 sample_type) -{ - struct evsel evsel = { - .needs_swap = false, - .core = { - . attr = { - .sample_type = sample_type, - .read_format = 0, - }, - }, - }; - union perf_event *event; - struct perf_sample sample = { - .weight = 101, - .ins_lat = 102, - .weight3 = 103, - }; - struct perf_sample sample_out; - size_t i, sz, bufsz; - int err, ret = -1; - - sz = perf_event__sample_event_size(&sample, sample_type, 0); - bufsz = sz + 4096; /* Add a bit for overrun checking */ - event = malloc(bufsz); - if (!event) { - pr_debug("malloc failed\n"); - return -1; - } - - memset(event, 0xff, bufsz); - event->header.type = PERF_RECORD_SAMPLE; - event->header.misc = 0; - event->header.size = sz; - - err = perf_event__synthesize_sample(event, sample_type, 0, &sample); - if (err) { - pr_debug("%s failed for sample_type %#"PRIx64", error %d\n", - "perf_event__synthesize_sample", sample_type, err); - goto out_free; - } - - /* The data does not contain 0xff so we use that to check the size */ - for (i = bufsz; i > 0; i--) { - if (*(i - 1 + (u8 *)event) != 0xff) - break; - } - if (i != sz) { - pr_debug("Event size mismatch: actual %zu vs expected %zu\n", - i, sz); - goto out_free; - } - - evsel.sample_size = __evsel__sample_size(sample_type); - - err = evsel__parse_sample(&evsel, event, &sample_out); - if (err) { - pr_debug("%s failed for sample_type %#"PRIx64", error %d\n", - "evsel__parse_sample", sample_type, err); - goto out_free; - } - - if (!samples_same(&sample, &sample_out, sample_type)) { - pr_debug("parsing failed for sample_type %#"PRIx64"\n", - sample_type); - goto out_free; - } - - ret = 0; -out_free: - free(event); - - return ret; -} - -/** - * test__x86_sample_parsing - test X86 specific sample parsing - * - * This function implements a test that synthesizes a sample event, parses it - * and then checks that the parsed sample matches the original sample. If the - * test passes %0 is returned, otherwise %-1 is returned. - * - * For now, the PERF_SAMPLE_WEIGHT_STRUCT is the only X86 specific sample type. - * The test only checks the PERF_SAMPLE_WEIGHT_STRUCT type. - */ -int test__x86_sample_parsing(struct test_suite *test __maybe_unused, int subtest __maybe_unused) -{ - return do_test(PERF_SAMPLE_WEIGHT_STRUCT); -} diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c index 72411580f869..a7327c942ca2 100644 --- a/tools/perf/tests/sample-parsing.c +++ b/tools/perf/tests/sample-parsing.c @@ -152,6 +152,12 @@ static bool samples_same(struct perf_sample *s1, if (type & PERF_SAMPLE_WEIGHT) COMP(weight); + if (type & PERF_SAMPLE_WEIGHT_STRUCT) { + COMP(weight); + COMP(ins_lat); + COMP(weight3); + } + if (type & PERF_SAMPLE_DATA_SRC) COMP(data_src); @@ -269,6 +275,8 @@ static int do_test(u64 sample_type, u64 sample_regs, u64 read_format) .cgroup = 114, .data_page_size = 115, .code_page_size = 116, + .ins_lat = 117, + .weight3 = 118, .aux_sample = { .size = sizeof(aux_data), .data = (void *)aux_data, @@ -439,6 +447,12 @@ static int test__sample_parsing(struct test_suite *test __maybe_unused, int subt if (err) return err; } + sample_type = (PERF_SAMPLE_MAX - 1) & ~PERF_SAMPLE_WEIGHT_STRUCT; + for (i = 0; i < ARRAY_SIZE(rf); i++) { + err = do_test(sample_type, sample_regs, rf[i]); + if (err) + return err; + } return 0; } -- 2.25.1