/* i386-specific implementation of profiling support. Copyright (C) 1997-2017 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper , 1997. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see . */ #include /* We need a special version of the `mcount' function since for ix86 it must not clobber any register. This has several reasons: - there is a bug in gcc as of version 2.7.2.2 which prohibits the use of profiling together with nested functions - the ELF `fixup' function uses GCC's regparm feature - some (future) systems might want to pass parameters in registers. */ /* We must not pollute the global namespace. */ #define mcount_internal __mcount_internal extern void mcount_internal (u_long frompc, u_long selfpc) __attribute__ ((regparm (2))); #define _MCOUNT_DECL(frompc, selfpc) \ __attribute__ ((regparm (2))) \ void mcount_internal (u_long frompc, u_long selfpc) /* Define MCOUNT as empty since we have the implementation in another file. */ #define MCOUNT