As fs/Kconfig shows, MEMFD_CREATE depends on TMPFS or HUGETLBFS:
config MEMFD_CREATE def_bool TMPFS || HUGETLBFS
Let's skip vfprintf test if they are not there.
The /tmp and /hugetlb directories have been created to mount tmpfs and hugetlbfs respectively, if they are not enabled in kernel configuration, neither /tmp nor /hugetlb will be created.
Signed-off-by: Zhangjin Wu falcon@tinylab.org --- tools/testing/selftests/nolibc/nolibc-test.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/tools/testing/selftests/nolibc/nolibc-test.c b/tools/testing/selftests/nolibc/nolibc-test.c index 8b1ce9911c5c..85fa64746cde 100644 --- a/tools/testing/selftests/nolibc/nolibc-test.c +++ b/tools/testing/selftests/nolibc/nolibc-test.c @@ -769,11 +769,22 @@ int run_stdlib(int min, int max)
static int expect_vfprintf(int llen, size_t c, const char *expected, const char *fmt, ...) { + struct stat stat_buf; int ret, fd, w, r; + int tmpfs = 0, hugetlbfs = 0; char buf[100]; FILE *memfile; va_list args;
+ /* memfd_create depends on tmpfs or hugetlbfs */ + tmpfs = stat("/tmp/.", &stat_buf) == 0; + hugetlbfs = stat("/hugetlb/.", &stat_buf) == 0; + + if (!tmpfs && !hugetlbfs) { + pad_spc(llen, 64, "[SKIPPED]\n"); + return 0; + } + /* silence warning for kernel >= v6.2: * * "memfd_create() without MFD_EXEC nor MFD_NOEXEC_SEAL, pid=<pid>"