diff options
Diffstat (limited to 'sysdeps/x86_64/multiarch/mempcpy.c')
-rw-r--r-- | sysdeps/x86_64/multiarch/mempcpy.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/x86_64/multiarch/mempcpy.c b/sysdeps/x86_64/multiarch/mempcpy.c new file mode 100644 index 0000000000..f6e9b8acc0 --- /dev/null +++ b/sysdeps/x86_64/multiarch/mempcpy.c @@ -0,0 +1,40 @@ +/* Multiple versions of mempcpy. + All versions must be listed in ifunc-impl-list.c. + Copyright (C) 2017 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 + <http://www.gnu.org/licenses/>. */ + +/* Define multiple versions only for the definition in lib and for + DSO. In static binaries we need mempcpy before the initialization + happened. */ +#if defined SHARED && IS_IN (libc) +# define mempcpy __redirect_mempcpy +# define __mempcpy __redirect___mempcpy +# include <string.h> +# undef mempcpy +# undef __mempcpy + +# define SYMBOL_NAME mempcpy +# include "ifunc-memmove.h" + +libc_ifunc_redirected (__redirect_mempcpy, __mempcpy, IFUNC_SELECTOR ()); + +weak_alias (__mempcpy, mempcpy) +__hidden_ver1 (__mempcpy, __GI___mempcpy, __redirect___mempcpy) + __attribute__ ((visibility ("hidden"))); +__hidden_ver1 (mempcpy, __GI_mempcpy, __redirect_mempcpy) + __attribute__ ((visibility ("hidden"))); +#endif |