1 // SPDX-License-Identifier: GPL-2.0 2 // Copyright (C) 2019, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> 3 #define _GNU_SOURCE 4 #include <unistd.h> 5 6 int main(void) 7 { 8 return gettid(); 9 } 10 11 #undef _GNU_SOURCE 12