From 0f900110c7b49cae863c19960991033e55c0ad2e Mon Sep 17 00:00:00 2001
From: James Clark <james.clark@linaro.org>
Date: Tue, 9 Jun 2026 15:40:22 +0100
Subject: [PATCH] perf test cs-etm: Add all branch instructions to test

If we reduce the number of samples searched to speed up the test, then
there will be less chance of hitting one of these branches. Extend the
regex to cover all branches so the test will always pass.

Reviewed-by: Leo Yan <leo.yan@arm.com>
Signed-off-by: James Clark <james.clark@linaro.org>
Cc: Amir Ayupov <aaupov@meta.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Mike Leach <mike.leach@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paschalis Mpeis <Paschalis.Mpeis@arm.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/shell/test_arm_coresight_disasm.sh | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/perf/tests/shell/test_arm_coresight_disasm.sh b/tools/perf/tests/shell/test_arm_coresight_disasm.sh
index 87797d239f76..f78dfb6bf73e 100755
--- a/tools/perf/tests/shell/test_arm_coresight_disasm.sh
+++ b/tools/perf/tests/shell/test_arm_coresight_disasm.sh
@@ -38,8 +38,7 @@ cleanup_files()
 trap cleanup_files EXIT TERM INT
 
 # Ranges start and end on branches, so check for some likely branch instructions
-sep="\s\|\s"
-branch_search="\sbl${sep}b${sep}b.ne${sep}b.eq${sep}cbz\s"
+branch_search='[[:space:]](bl|b(\.(eq|ne|cs|cc|mi|pl|vs|vc|hi|ls|ge|lt|gt|le|al))?|br|blr|ret|cbz|cbnz|tbz|tbnz|svc|eret)([[:space:]]|$)'
 
 ## Test kernel ##
 if [ "$(id -u)" == 0 ] && [ -e /proc/kcore ]; then
@@ -47,7 +46,7 @@ if [ "$(id -u)" == 0 ] && [ -e /proc/kcore ]; then
 	perf record -o ${perfdata} -e cs_etm//k --kcore -- touch $file > /dev/null 2>&1
 	perf script -i ${perfdata} -s python:${script_path} -- \
 		-d --stop-sample=30 -k ${perfdata}/kcore_dir/kcore 2> /dev/null > ${file}
-	grep -q -e ${branch_search} ${file}
+	grep -q -E ${branch_search} ${file}
 	echo "Found kernel branches"
 else
 	# Root and kcore are required for correct kernel decode due to runtime code patching
@@ -59,7 +58,7 @@ echo "Testing userspace disassembly"
 perf record -o ${perfdata} -e cs_etm//u -- touch $file > /dev/null 2>&1
 perf script -i ${perfdata} -s python:${script_path} -- \
 	-d --stop-sample=30 2> /dev/null > ${file}
-grep -q -e ${branch_search} ${file}
+grep -q -E ${branch_search} ${file}
 echo "Found userspace branches"
 
 glb_err=0