linux-kernel - [PATCH 2/2] perf test: Set PERF_EXEC

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Date:   Thu, 22 Jun 2023 16:53:57 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...nel.org>, Ian Rogers <irogers@...gle.com>
Cc:     Adrian Hunter <adrian.hunter@...el.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        linux-perf-users@...r.kernel.org,
        Aditya Gupta <adityag@...ux.ibm.com>,
        Petar Gligoric <petar.gligoric@...de-schwarz.com>,
        Hagen Paul Pfeifer <hagen@...u.net>
Subject: [PATCH 2/2] perf test: Set PERF_EXEC_PATH for script execution

The task-analyzer.py script (actually every other scripts too) requires
PERF_EXEC_PATH env to find dependent libraries and scripts. For scripts
test to run correctly, it needs to set PERF_EXEC_PATH to the perf tool
source directory.

Instead of blindly update the env, let's check the directory structure
to make sure it points to the correct location.

Fixes: e8478b84d6ba ("perf test: add new task-analyzer tests")
Cc: Petar Gligoric <petar.gligoric@...de-schwarz.com>
Cc: Hagen Paul Pfeifer <hagen@...u.net>
Cc: Aditya Gupta <adityag@...ux.ibm.com>
Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 tools/perf/tests/shell/test_task_analyzer.sh | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/tests/shell/test_task_analyzer.sh b/tools/perf/tests/shell/test_task_analyzer.sh
index 59785dfc11f8..0095abbe20ca 100755
--- a/tools/perf/tests/shell/test_task_analyzer.sh
+++ b/tools/perf/tests/shell/test_task_analyzer.sh
@@ -5,6 +5,12 @@
 tmpdir=$(mktemp -d /tmp/perf-script-task-analyzer-XXXXX)
 err=0
 
+# set PERF_EXEC_PATH to find scripts in the source directory
+perfdir=$(dirname "$0")/../..
+if [ -e "$perfdir/scripts/python/Perf-Trace-Util" ]; then
+  export PERF_EXEC_PATH=$perfdir
+fi
+
 cleanup() {
   rm -f perf.data
   rm -f perf.data.old
-- 
2.41.0.162.gfafddb0af9-goog