1 /* This testcase is part of GDB, the GNU debugger. 2 3 Copyright 2009-2019 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 extern volatile int gnu_ifunc_initialized; 19 extern volatile unsigned long resolver_hwcap; 20 extern int init_stub (int arg); 21 extern int final (int arg); 22 23 typedef int (*final_t) (int arg); 24 25 #ifndef IFUNC_RESOLVER_ATTR 26 asm (".type gnu_ifunc, %gnu_indirect_function"); 27 final_t 28 gnu_ifunc (unsigned long hwcap) 29 #else 30 final_t 31 gnu_ifunc_resolver (unsigned long hwcap) 32 #endif 33 { 34 resolver_hwcap = hwcap; 35 if (! gnu_ifunc_initialized) 36 return init_stub; 37 else 38 return final; 39 } 40 41 #ifdef IFUNC_RESOLVER_ATTR 42 extern int gnu_ifunc (int arg); 43 44 __typeof (gnu_ifunc) gnu_ifunc __attribute__ ((ifunc ("gnu_ifunc_resolver"))); 45 #endif 46