[PATCH v3 8/8] perf trace: Add general tests for augmented syscalls

Howard Chu
2024-08-24T16:33:33Z

In this test, augmentation for:

* string
* buffer
* struct

Is tested.

Please use this command:

perf test "perf trace general tests"

Signed-off-by: Howard Chu <howardchu95@gmail.com>
Suggested-by: Ian Rogers <irogers@google.com>
---
tools/perf/tests/shell/trace_btf_general.sh | 67 +++++++++++++++++++++
1 file changed, 67 insertions(+)
create mode 100755 tools/perf/tests/shell/trace_btf_general.sh

diff --git a/tools/perf/tests/shell/trace_btf_general.sh b/tools/perf/tests/shell/trace_btf_general.sh
new file mode 100755
index 000000000000..0b4ea8462390
--- /dev/null
+++ b/tools/perf/tests/shell/trace_btf_general.sh
@@ -0,0 +1,67 @@
+#!/bin/sh
+# perf trace general tests
+# SPDX-License-Identifier: GPL-2.0
+
+err=0
+set -e
+
+. "$(dirname $0)"/lib/probe.sh
+skip_if_no_perf_trace || exit 2
+
+file1=$(mktemp /tmp/file1_XXXXX)
+file2=$(echo $file1 | sed 's/file1/file2/g')
+
+buffer="this is a buffer for testing"
+
+trap cleanup EXIT TERM INT HUP
+
+trace_test_string() {
+ echo "Testing perf trace's string augmentation"
+ if ! perf trace -e renameat* --max-events=1 -- mv ${file1} ${file2} 2>&1 | grep -q -E "renameat[2]*.*oldname: \"${file1}\".*newname: \"${file2}\".*"
+ then
+ echo "String augmentation test failed"
+ err=1
+ fi
+}
+
+trace_test_buffer() {
+ echo "Testing perf trace's buffer augmentation"
+ if ! perf trace -e write --max-events=1 -- echo "${buffer}" 2>&1 | grep -q -E ".*write.*buf: ${buffer}.*"
+ then
+ echo "Buffer augmentation test failed"
+ err=1
+ fi
+}
+
+trace_test_struct_btf() {
+ echo "Testing perf trace's struct augmentation"
+ if ! perf trace -e clock_nanosleep --force-btf --max-events=1 -- sleep 1 2>&1 | grep -q -E ".*clock_nanosleep\(rqtp: \{1,\}, rmtp: \{1,\}\).* = 0"
+ then
+ echo "BTF struct augmentation test failed"
+ err=1
+ fi
+}
+
+cleanup() {
+ rm -rf ${file1} ${file2}
+}
+
+trap_cleanup() {
+ echo "Unexpected signal in ${FUNCNAME[1]}"
+ cleanup
+ exit 1
+}
+
+trace_test_string
+
+if [ $err = 0 ]; then
+ trace_test_buffer
+fi
+
+if [ $err = 0 ]; then
+ trace_test_struct_btf
+fi
+
+cleanup
+
+exit $err
--
2.45.2