[PATCH v4 19/21] tools/ksw: add test script
From: Jinchao Wang <hidden>
Date: 2025-09-12 10:13:33
Also in:
linux-doc, linux-mm, linux-perf-users, lkml, llvm, workflows
Subsystem:
the rest · Maintainer:
Linus Torvalds
Provide a shell script to trigger test cases. Signed-off-by: Jinchao Wang <redacted> --- tools/kstackwatch/kstackwatch_test.sh | 40 +++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100755 tools/kstackwatch/kstackwatch_test.sh
diff --git a/tools/kstackwatch/kstackwatch_test.sh b/tools/kstackwatch/kstackwatch_test.sh
new file mode 100755
index 000000000000..61e171439ab6
--- /dev/null
+++ b/tools/kstackwatch/kstackwatch_test.sh@@ -0,0 +1,40 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +echo "IMPORTANT: Before running, make sure you have updated the offset values!" + +usage() { + echo "Usage: $0 [0-3]" + echo " 0 - Canary Write Test" + echo " 1 - Canary Overflow Test" + echo " 2 - Silent Corruption Test" + echo " 3 - Recursive Corruption Test" +} + +run_test() { + local test_num=$1 + case "$test_num" in + 0) echo "canary_test_write+0x19" >/proc/kstackwatch + echo "test0" >/proc/kstackwatch_test ;; + 1) echo "canary_test_overflow+0x1a" >/proc/kstackwatch + echo "test1" >/proc/kstackwatch_test ;; + 2) echo "silent_corruption_victim+0x32 0:8" >/proc/kstackwatch + echo "test2" >/proc/kstackwatch_test ;; + 3) echo "recursive_corruption_test+0x21+3 0:8" >/proc/kstackwatch + echo "test3" >/proc/kstackwatch_test ;; + *) usage + exit 1 ;; + esac + # Reset watch after test + echo >/proc/kstackwatch +} + +# Check root and module +[ "$EUID" -ne 0 ] && echo "Run as root" && exit 1 +for f in /proc/kstackwatch /proc/kstackwatch_test; do + [ ! -f "$f" ] && echo "$f not found" && exit 1 +done + +# Run +[ -z "$1" ] && { usage; exit 0; } +run_test "$1"
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2.43.0