1/* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2013-2020 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#include <stdlib.h> 19 20volatile int v = 1; 21 22static __attribute__ ((noinline, noclone, noreturn)) void 23noret (int x, ...) 24{ 25 abort (); 26} 27 28static __attribute__ ((noinline, noclone)) void 29mayret (int x) 30{ 31 if (v) 32 noret (x); 33} 34 35static __attribute__ ((noinline, noclone)) void 36tailcall (int x) 37{ 38 mayret (x); 39} 40 41int 42main (void) 43{ 44 tailcall (1); 45 return 0; 46} 47