1 /* AArch64 definitions for profiling support. 2 Copyright (C) 1996-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library 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 GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 /* Accept 'frompc' address as argument from the function that calls 20 __mcount for profiling. Use __builtin_return_address (0) 21 for the 'selfpc' address. */ 22 23 #include <sysdep.h> 24 25 static void mcount_internal (u_long frompc, u_long selfpc); 26 27 #define _MCOUNT_DECL(frompc, selfpc) \ 28 static inline void mcount_internal (u_long frompc, u_long selfpc) 29 30 /* Note: strip_pac is needed for frompc because of gcc PR target/94791. */ 31 #define MCOUNT \ 32 void __mcount (void *frompc) \ 33 { \ 34 mcount_internal ((u_long) strip_pac (frompc), (u_long) RETURN_ADDRESS (0)); \ 35 } 36