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perf test: Fix sys_enter_openat event test for musl

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The "syscalls:sys_enter_openat event fields" test calls

openat(AT_FDCWD, "/etc/passwd", O_RDONLY | O_DIRECTORY)

and verifies that the flags of the captured event are matching.
This fails for musl, where the openat syscall wrapper always adds
O_LARGEFILE.

Update the check to allow for additional flags, the access mode flags
must be unchanged.

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 16:38:47 +02:00 committed by Arnaldo Carvalho de Melo
parent a4cbd51862
commit 9a4a67dddc
1 changed files with 4 additions and 1 deletions
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5
tools/perf/tests/openat-syscall-tp-fields.c
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@ -120,7 +120,10 @@ static int test__syscall_openat_tp_fields(struct test_suite *test __maybe_unused
tp_flags = evsel__intval(evsel, &sample, "flags");
perf_sample__exit(&sample);
if (flags != tp_flags) {
/* C library wrapper may set additional flags,
access mode must be unchanged */
if ((tp_flags & O_ACCMODE) != (flags & O_ACCMODE) ||
(tp_flags & flags) != flags) {
pr_debug("%s: Expected flags=%#x, got %#x\n",
__func__, flags, tp_flags);
goto out_delete_evlist;