/* Checking mempcpy for x86-64. Copyright (C) 2004-2016 Free Software Foundation, Inc. This file is part of the GNU C Library. 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 #include "asm-syntax.h" #ifndef PIC /* For libc.so this is defined in memcpy.S. For libc.a, this is a separate source to avoid mempcpy bringing in __chk_fail and all routines it calls. */ .text ENTRY (__mempcpy_chk) cmpq %rdx, %rcx jb __chk_fail jmp mempcpy END (__mempcpy_chk) #endif