linux-kernel - [tip:perf/core] perf tests record: Allow for 'sleep' being 'coreutils'

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Message-ID: <tip-2aac9f9d5b85da1cc77c51d78aa41012244f7518@git.kernel.org>
Date:   Tue, 18 Dec 2018 05:51:50 -0800
From:   tip-bot for Adrian Hunter <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     jolsa@...hat.com, linux-kernel@...r.kernel.org, acme@...hat.com,
        hpa@...or.com, adrian.hunter@...el.com, mingo@...nel.org,
        tglx@...utronix.de
Subject: [tip:perf/core] perf tests record: Allow for 'sleep' being
 'coreutils'

Commit-ID:  2aac9f9d5b85da1cc77c51d78aa41012244f7518
Gitweb:     https://git.kernel.org/tip/2aac9f9d5b85da1cc77c51d78aa41012244f7518
Author:     Adrian Hunter <adrian.hunter@...el.com>
AuthorDate: Thu, 22 Nov 2018 15:55:45 +0200
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Mon, 17 Dec 2018 14:54:26 -0300

perf tests record: Allow for 'sleep' being 'coreutils'

If the 'sleep' command is provided by coreutils, then the "PERF_RECORD_*
events & perf_sample fields" test will fail because the MMAP name is
'coreutils' not 'sleep', and there is an extra COMM event. Fix the test
to detect that case.

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Link: http://lkml.kernel.org/r/20181122135545.16295-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/tests/perf-record.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index 34394cc05077..07f6bd8ed719 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -58,6 +58,7 @@ int test__PERF_RECORD(struct test *test __maybe_unused, int subtest __maybe_unus
 	char *bname, *mmap_filename;
 	u64 prev_time = 0;
 	bool found_cmd_mmap = false,
+	     found_coreutils_mmap = false,
 	     found_libc_mmap = false,
 	     found_vdso_mmap = false,
 	     found_ld_mmap = false;
@@ -254,6 +255,8 @@ int test__PERF_RECORD(struct test *test __maybe_unused, int subtest __maybe_unus
 					if (bname != NULL) {
 						if (!found_cmd_mmap)
 							found_cmd_mmap = !strcmp(bname + 1, cmd);
+						if (!found_coreutils_mmap)
+							found_coreutils_mmap = !strcmp(bname + 1, "coreutils");
 						if (!found_libc_mmap)
 							found_libc_mmap = !strncmp(bname + 1, "libc", 4);
 						if (!found_ld_mmap)
@@ -292,7 +295,7 @@ int test__PERF_RECORD(struct test *test __maybe_unused, int subtest __maybe_unus
 	}
 
 found_exit:
-	if (nr_events[PERF_RECORD_COMM] > 1) {
+	if (nr_events[PERF_RECORD_COMM] > 1 + !!found_coreutils_mmap) {
 		pr_debug("Excessive number of PERF_RECORD_COMM events!\n");
 		++errs;
 	}
@@ -302,7 +305,7 @@ found_exit:
 		++errs;
 	}
 
-	if (!found_cmd_mmap) {
+	if (!found_cmd_mmap && !found_coreutils_mmap) {
 		pr_debug("PERF_RECORD_MMAP for %s missing!\n", cmd);
 		++errs;
 	}