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authorIan Rogers <irogers@google.com>2025-03-11 17:18:41 -0700
committerNamhyung Kim <namhyung@kernel.org>2025-03-14 18:15:13 -0700
commit3a86d63e6fa51b2171310a1a1b60d5830f6f521b (patch)
tree052a7c8cafd5ee840665ad22bec52bcb16a2d290
parentperf libunwind: Fixup conversion perf_sample->user_regs to a pointer (diff)
downloadwireguard-linux-3a86d63e6fa51b2171310a1a1b60d5830f6f521b.tar.xz
wireguard-linux-3a86d63e6fa51b2171310a1a1b60d5830f6f521b.zip
perf test: Fixes to variable expansion and stdout for diff test
When make_data fails its error message needs to go to stderr rather than stdout and the stdout value is captured in a variable. Quote the $err value so that it is always a valid input for test. This error is commonly encountered if no sample data is gathered by the test. Signed-off-by: Ian Rogers <irogers@google.com> Link: https://lore.kernel.org/r/20250312001841.1515779-1-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Diffstat (limited to '')
-rwxr-xr-xtools/perf/tests/shell/diff.sh12
1 files changed, 6 insertions, 6 deletions
diff --git a/tools/perf/tests/shell/diff.sh b/tools/perf/tests/shell/diff.sh
index 14b87af88703..e05a5dc49479 100755
--- a/tools/perf/tests/shell/diff.sh
+++ b/tools/perf/tests/shell/diff.sh
@@ -39,13 +39,13 @@ make_data() {
file="$1"
if ! perf record -o "${file}" ${testprog} 2> /dev/null
then
- echo "Workload record [Failed record]"
+ echo "Workload record [Failed record]" >&2
echo 1
return
fi
if ! perf report -i "${file}" -q | grep -q "${testsym}"
then
- echo "Workload record [Failed missing output]"
+ echo "Workload record [Failed missing output]" >&2
echo 1
return
fi
@@ -55,12 +55,12 @@ make_data() {
test_two_files() {
echo "Basic two file diff test"
err=$(make_data "${perfdata1}")
- if [ $err != 0 ]
+ if [ "$err" != 0 ]
then
return
fi
err=$(make_data "${perfdata2}")
- if [ $err != 0 ]
+ if [ "$err" != 0 ]
then
return
fi
@@ -77,12 +77,12 @@ test_two_files() {
test_three_files() {
echo "Basic three file diff test"
err=$(make_data "${perfdata1}")
- if [ $err != 0 ]
+ if [ "$err" != 0 ]
then
return
fi
err=$(make_data "${perfdata2}")
- if [ $err != 0 ]
+ if [ "$err" != 0 ]
then
return
fi