tools/build/feature/test-libdw-dwarf-unwind.c (6 lines of code) (raw):

// SPDX-License-Identifier: GPL-2.0 #include <elfutils/libdwfl.h> int main(void) { /* * This function is guarded via: __nonnull_attribute__ (1, 2). * Passing '1' as arguments value. This code is never executed, * only compiled. */ dwfl_thread_getframes((void *) 1, (void *) 1, NULL); return 0; }