diff options
Diffstat (limited to 'sysdeps/i386/multiarch/mempcpy_chk.S')
| -rw-r--r-- | sysdeps/i386/multiarch/mempcpy_chk.S | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/i386/multiarch/mempcpy_chk.S b/sysdeps/i386/multiarch/mempcpy_chk.S new file mode 100644 index 0000000000..496cc0064c --- /dev/null +++ b/sysdeps/i386/multiarch/mempcpy_chk.S @@ -0,0 +1,60 @@ +/* Multiple versions of __mempcpy_chk + All versions must be listed in ifunc-impl-list.c. + Copyright (C) 2010-2015 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/>. */ + +/* Define multiple versions only for the definition in lib and for + DSO. There are no multiarch mempcpy functions for static binaries. + */ +#if IS_IN (libc) +# include <sysdep.h> +# include <init-arch.h> + +# ifdef SHARED + .text +ENTRY(__mempcpy_chk) + .type __mempcpy_chk, @gnu_indirect_function + LOAD_GOT_AND_RTLD_GLOBAL_RO +# if !SUPPORT_I686 +# if !SUPPORT_I586 + LOAD_FUNC_GOT_EAX (__mempcpy_chk_i386) + HAS_ARCH_FEATURE (I586) + jz 2f +# endif + LOAD_FUNC_GOT_EAX (__mempcpy_chk_i586) + HAS_ARCH_FEATURE (I686) + jz 2f +# endif + LOAD_FUNC_GOT_EAX (__mempcpy_chk_i686) + HAS_CPU_FEATURE (SSE2) + jz 2f + LOAD_FUNC_GOT_EAX (__mempcpy_chk_sse2_unaligned) + HAS_ARCH_FEATURE (Fast_Unaligned_Load) + jnz 2f + HAS_CPU_FEATURE (SSSE3) + jz 2f + LOAD_FUNC_GOT_EAX (__mempcpy_chk_ssse3) + HAS_CPU_FEATURE (Fast_Rep_String) + jz 2f + LOAD_FUNC_GOT_EAX (__mempcpy_chk_ssse3_rep) +2: ret +END(__mempcpy_chk) +# else +# include <sysdeps/i386/mempcpy_chk.S> +# endif +#endif |