linux-kernel - [PATCH v1 2/8] perf test trace_btf_enum: Skip if permissions are insufficient

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Message-Id: <20241213210425.526512-3-irogers@google.com>
Date: Fri, 13 Dec 2024 13:04:19 -0800
From: Ian Rogers <irogers@...gle.com>
To: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...hat.com>, 
	Arnaldo Carvalho de Melo <acme@...nel.org>, Namhyung Kim <namhyung@...nel.org>, 
	Mark Rutland <mark.rutland@....com>, 
	Alexander Shishkin <alexander.shishkin@...ux.intel.com>, Jiri Olsa <jolsa@...nel.org>, 
	Ian Rogers <irogers@...gle.com>, Adrian Hunter <adrian.hunter@...el.com>, 
	Kan Liang <kan.liang@...ux.intel.com>, "Mike Rapoport (IBM)" <rppt@...nel.org>, 
	Wei Yang <richard.weiyang@...il.com>, James Clark <james.clark@...aro.org>, 
	Howard Chu <howardchu95@...il.com>, Kajol Jain <kjain@...ux.ibm.com>, 
	Athira Rajeev <atrajeev@...ux.vnet.ibm.com>, Ze Gao <zegao2021@...il.com>, 
	Weilin Wang <weilin.wang@...el.com>, linux-kernel@...r.kernel.org, 
	linux-perf-users@...r.kernel.org
Subject: [PATCH v1 2/8] perf test trace_btf_enum: Skip if permissions are insufficient

Modify test behavior to skip if BPF calls fail with "Operation not
permitted".

Fixes: d66763fed30f ("perf test trace_btf_enum: Add regression test for the BTF augmentation of enums in 'perf trace'")
Signed-off-by: Ian Rogers <irogers@...gle.com>
---
 tools/perf/tests/shell/trace_btf_enum.sh | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/tests/shell/trace_btf_enum.sh b/tools/perf/tests/shell/trace_btf_enum.sh
index 5a3b8a5a9b5c..737da3113966 100755
--- a/tools/perf/tests/shell/trace_btf_enum.sh
+++ b/tools/perf/tests/shell/trace_btf_enum.sh
@@ -23,6 +23,14 @@ check_vmlinux() {
   fi
 }
 
+check_permissions() {
+  if perf trace -e $syscall $TESTPROG 2>&1 | grep -q "Operation not permitted"
+  then
+    echo "trace+enum test [Skipped permissions]"
+    err=2
+  fi
+}
+
 trace_landlock() {
   echo "Tracing syscall ${syscall}"
 
@@ -50,6 +58,9 @@ trace_non_syscall() {
 }
 
 check_vmlinux
+if [ $err = 0 ]; then
+  check_permissions
+fi
 
 if [ $err = 0 ]; then
   trace_landlock
-- 
2.47.1.613.gc27f4b7a9f-goog