/* Multiple versions of memset All versions must be listed in ifunc-impl-list.c. Copyright (C) 2010-2016 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 . */ #include #include /* Define multiple versions only for the definition in lib. */ #if IS_IN (libc) .text ENTRY(memset) .type memset, @gnu_indirect_function LOAD_GOT_AND_RTLD_GLOBAL_RO LOAD_FUNC_GOT_EAX (__memset_ia32) HAS_CPU_FEATURE (SSE2) jz 2f LOAD_FUNC_GOT_EAX (__memset_sse2) HAS_ARCH_FEATURE (Fast_Rep_String) jz 2f LOAD_FUNC_GOT_EAX (__memset_sse2_rep) 2: ret END(memset) # undef ENTRY # define ENTRY(name) \ .type __memset_ia32, @function; \ .globl __memset_ia32; \ .p2align 4; \ __memset_ia32: cfi_startproc; \ CALL_MCOUNT # undef END # define END(name) \ cfi_endproc; .size __memset_ia32, .-__memset_ia32 # undef ENTRY_CHK # define ENTRY_CHK(name) \ .type __memset_chk_ia32, @function; \ .globl __memset_chk_ia32; \ .p2align 4; \ __memset_chk_ia32: cfi_startproc; \ CALL_MCOUNT # undef END_CHK # define END_CHK(name) \ cfi_endproc; .size __memset_chk_ia32, .-__memset_chk_ia32 # ifdef SHARED # undef libc_hidden_builtin_def /* IFUNC doesn't work with the hidden functions in shared library since they will be called without setting up EBX needed for PLT which is used by IFUNC. */ # define libc_hidden_builtin_def(name) \ .globl __GI_memset; __GI_memset = __memset_ia32 # endif # undef strong_alias # define strong_alias(original, alias) #endif #include "../memset.S"