/* Copyright 2021-2024 Free Software Foundation, Inc. This file is part of GDB. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ #include #include #include /* noinline so the breakpoint reliably fires; the asm gives the function a side effect the optimizer cannot prove away. */ static void __attribute__ ((noinline)) second (void) { asm volatile ("" ::: "memory"); } int main (int argc, char **argv) { if (argc == 1) { /* First invocation. */ int ret = execl (argv[0], argv[0], "Hello", NULL); perror ("exec"); abort (); } else { /* Second invocation. */ second (); } return 0; }