1 /* This test program is part of GDB, the GNU debugger. 2 3 Copyright 2021-2023 Free Software Foundation, Inc. 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 3 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 17 18 volatile int global_var; 19 20 void __attribute__ ((noinline)) 21 f0 (void) 22 { 23 ++global_var; /* Break here. */ 24 } 25 26 void __attribute__ ((noinline)) 27 f1 (void) 28 { 29 f0 (); 30 } 31 32 void __attribute__ ((noinline)) 33 f2 (void) 34 { 35 f1 (); 36 } 37 38 void __attribute__ ((noinline)) 39 f3 (void) 40 { 41 f2 (); 42 } 43 44 int 45 main (void) 46 { 47 f3 (); 48 return 0; 49 } 50