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perf test: Fix nanosleep check in the ftrace test

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The perf ftrace test case runs:

  perf ftrace profile --graph-opts depth=5 sleep 0.1

and checks that the output contains a *clock_nanosleep function with a
count of 1.

This fails on a risc-v system that uses musl as its C library. musl's
nanosleep syscall wrapper uses either the nanosleep or the
clock_nanosleep syscall.

Filter for sys_*nanosleep to allow both syscalls.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Martin Kaiser 2026-04-28 16:38:46 +02:00 committed by Arnaldo Carvalho de Melo
parent 8c8f209361
commit a4cbd51862
1 changed files with 4 additions and 3 deletions
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7
tools/perf/tests/shell/ftrace.sh
View File

@ -71,9 +71,10 @@ test_ftrace_profile() {
grep ^# "${output}"
time_re="[[:space:]]+1[[:digit:]]{5}\.[[:digit:]]{3}"
# 100283.000 100283.000 100283.000 1 __x64_sys_clock_nanosleep
# Check for one *clock_nanosleep line with a Count of just 1 that takes a bit more than 0.1 seconds
# Strip the _x64_sys part to work with other architectures
grep -E "^${time_re}${time_re}${time_re}[[:space:]]+1[[:space:]]+.*clock_nanosleep" "${output}"
# Check for one *sys_*nanosleep line with a Count of just 1 that takes a bit more than 0.1 seconds
# Strip the _x64_ part to work with other architectures, strip the clock part to support
# C libraries that use the nanosleep syscall instead of clock_nanosleep
grep -E "^${time_re}${time_re}${time_re}[[:space:]]+1[[:space:]]+.*sys_.*nanosleep" "${output}"
echo "perf ftrace profile test [Success]"
}