| /* Multiple versions of __memcpy_chk |
| All versions must be listed in ifunc-impl-list.c. |
| Copyright (C) 2010-2014 Free Software Foundation, Inc. |
| Contributed by Intel Corporation. |
| 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <sysdep.h> |
| #include <init-arch.h> |
| |
| /* Define multiple versions only for the definition in lib and for |
| DSO. There are no multiarch memcpy functions for static binaries. |
| */ |
| #ifndef NOT_IN_libc |
| # ifdef SHARED |
| .text |
| ENTRY(__memcpy_chk) |
| .type __memcpy_chk, @gnu_indirect_function |
| cmpl $0, KIND_OFFSET+__cpu_features(%rip) |
| jne 1f |
| call __init_cpu_features |
| 1: leaq __memcpy_chk_sse2(%rip), %rax |
| testl $bit_SSSE3, __cpu_features+CPUID_OFFSET+index_SSSE3(%rip) |
| jz 2f |
| leaq __memcpy_chk_ssse3(%rip), %rax |
| testl $bit_Fast_Copy_Backward, __cpu_features+FEATURE_OFFSET+index_Fast_Copy_Backward(%rip) |
| jz 2f |
| leaq __memcpy_chk_ssse3_back(%rip), %rax |
| 2: ret |
| END(__memcpy_chk) |
| # else |
| # include "../memcpy_chk.S" |
| # endif |
| #endif |
