linux-kernel - [PATCH RESEND 2/2] perf test: Update branch sample parttern for cs-etm

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Message-Id: <20201110063417.14467-2-leo.yan@linaro.org>
Date:   Tue, 10 Nov 2020 14:34:17 +0800
From:   Leo Yan <leo.yan@...aro.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Suzuki Poulouse <suzuki.poulose@....com>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        Mike Leach <mike.leach@...aro.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Jin Yao <yao.jin@...ux.intel.com>,
        linux-kernel@...r.kernel.org,
        Coresight ML <coresight@...ts.linaro.org>
Cc:     Leo Yan <leo.yan@...aro.org>
Subject: [PATCH RESEND 2/2] perf test: Update branch sample parttern for cs-etm

Since the commit 943b69ac1884 ("perf parse-events: Set exclude_guest=1
for user-space counting"), 'exclude_guest=1' is set for user-space
counting; and the branch sample's modifier has been altered, the sample
event name has been changed from "branches:u:" to "branches:uH:", which
gives out info for "user-space and host counting".

But the cs-etm testing's regular expression cannot match the updated
branch sample event and leads to test failure.

This patch updates the branch sample parttern by using a more flexible
expression '.*' to match branch sample's modifiers, so that allows the
testing to work as expected.

Fixes: 943b69ac1884 ("perf parse-events: Set exclude_guest=1 for user-space counting")
Signed-off-by: Leo Yan <leo.yan@...aro.org>
---
 tools/perf/tests/shell/test_arm_coresight.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/shell/test_arm_coresight.sh b/tools/perf/tests/shell/test_arm_coresight.sh
index 59d847d4981d..18fde2f179cd 100755
--- a/tools/perf/tests/shell/test_arm_coresight.sh
+++ b/tools/perf/tests/shell/test_arm_coresight.sh
@@ -44,7 +44,7 @@ perf_script_branch_samples() {
 	#   touch  6512          1         branches:u:      ffffb22082e0 strcmp+0xa0 (/lib/aarch64-linux-gnu/ld-2.27.so)
 	#   touch  6512          1         branches:u:      ffffb2208320 strcmp+0xe0 (/lib/aarch64-linux-gnu/ld-2.27.so)
 	perf script -F,-time -i ${perfdata} | \
-		egrep " +$1 +[0-9]+ .* +branches:([u|k]:)? +"
+		egrep " +$1 +[0-9]+ .* +branches:(.*:)? +"
 }
 
 perf_report_branch_samples() {
-- 
2.17.1