openat 338 opal/mca/hwloc/hwloc201/hwloc/hwloc/topology-linux.c return openat (fsroot_fd, relative_path, O_RDONLY); openat 392 opal/mca/hwloc/hwloc201/hwloc/hwloc/topology-linux.c dir_fd = openat(fsroot_fd, relative_path, O_RDONLY | O_DIRECTORY);