1 files changed, 50 insertions, 0 deletions
diff --git a/tools/perf/tests/shell/trace+probe_vfs_getname.sh b/tools/perf/tests/shell/trace+probe_vfs_getname.sh
new file mode 100755
index 000000000000..7a0b1145d0cd
--- /dev/null
+++ b/tools/perf/tests/shell/trace+probe_vfs_getname.sh
@@ -0,0 +1,50 @@
+#!/bin/bash
+# Check open filename arg using perf trace + vfs_getname (exclusive)
+
+# Uses the 'perf test shell' library to add probe:vfs_getname to the system
+# then use it with 'perf trace' using 'touch' to write to a temp file, then
+# checks that that was captured by the vfs_getname was used by 'perf trace',
+# that already handles "probe:vfs_getname" if present, and used in the
+# "open" syscall "filename" argument beautifier.
+
+# SPDX-License-Identifier: GPL-2.0
+# Arnaldo Carvalho de Melo <acme@kernel.org>, 2017
+
+# shellcheck source=lib/probe.sh
+. "$(dirname $0)"/lib/probe.sh
+
+skip_if_no_perf_probe || exit 2
+skip_if_no_perf_trace || exit 2
+[ "$(id -u)" = 0 ] || exit 2
+
+. "$(dirname $0)"/lib/probe_vfs_getname.sh
+
+trace_open_vfs_getname() {
+	evts="$(echo "$(perf list tracepoint 2>/dev/null | grep -E 'syscalls:sys_enter_open(at)? ' | sed -r 's/.*sys_enter_([a-z]+) +\[.*$/\1/')" | sed ':a;N;s:\n:,:g')"
+	perf trace -e $evts touch $file 2>&1 | \
+	grep -E " +[0-9]+\.[0-9]+ +\( +[0-9]+\.[0-9]+ ms\): +touch/[0-9]+ open(at)?\((dfd: +CWD, +)?filename: +\"?${file}\"?, +flags: CREAT\|NOCTTY\|NONBLOCK\|WRONLY, +mode: +IRUGO\|IWUGO\) += +[0-9]+$"
+}
+
+add_probe_vfs_getname
+err=$?
+
+if [ $err -eq 1 ] ; then
+        skip_if_no_debuginfo
+        err=$?
+fi
+
+if [ $err -ne 0 ] ; then
+	exit $err
+fi
+
+file=$(mktemp /tmp/temporary_file.XXXXX)
+
+# Do not use whatever ~/.perfconfig file, it may change the output
+# via trace.{show_timestamp,show_prefix,etc}
+export PERF_CONFIG=/dev/null
+
+trace_open_vfs_getname
+err=$?
+rm -f ${file}
+cleanup_probe_vfs_getname
+exit $err