linux: Handle EINVAL as unsupported on tst-pidfd_getinfo

Some kernels returns EINVAL for ioctl (PIDFD_GET_INFO) on pidfd
descriptors.

Checked on aarch64-linux-gnu with Linux 6.12.

Reviewed-by: Florian Weimer <fweimer@redhat.com>

diff --git a/sysdeps/unix/sysv/linux/tst-pidfd_getinfo.c b/sysdeps/unix/sysv/linux/tst-pidfd_getinfo.c
index 948a7cdb6b36ac03ec635ffd22e5bb606eb09014..f4a77816b43002d7572b100683ad58d75db0bb8a 100644 (file)
--- a/sysdeps/unix/sysv/linux/tst-pidfd_getinfo.c
+++ b/sysdeps/unix/sysv/linux/tst-pidfd_getinfo.c
@@ -46,7 +46,7 @@ do_test (void)
   };
   if (ioctl (pidfd, PIDFD_GET_INFO, &info) != 0)
     {
-      if (errno == ENOTTY)
+      if (errno == ENOTTY || errno == EINVAL)
        FAIL_UNSUPPORTED ("kernel does not support PIDFD_GET_INFO");
       else
        FAIL_EXIT1 ("ioctl (PIDFD_GET_INFO) failed: %m");