diff options
Diffstat (limited to 'REORG.TODO/sysdeps/x86_64/multiarch/strstr.c')
| -rw-r--r-- | REORG.TODO/sysdeps/x86_64/multiarch/strstr.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/x86_64/multiarch/strstr.c b/REORG.TODO/sysdeps/x86_64/multiarch/strstr.c new file mode 100644 index 0000000000..a7d181d797 --- /dev/null +++ b/REORG.TODO/sysdeps/x86_64/multiarch/strstr.c @@ -0,0 +1,50 @@ +/* Multiple versions of strstr. + All versions must be listed in ifunc-impl-list.c. + Copyright (C) 2012-2017 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/>. */ + +/* Redefine strstr so that the compiler won't complain about the type + mismatch with the IFUNC selector in strong_alias, below. */ +#undef strstr +#define strstr __redirect_strstr +#include <string.h> +#undef strstr + +#define STRSTR __strstr_sse2 +#ifdef SHARED +# undef libc_hidden_builtin_def +# define libc_hidden_builtin_def(name) \ + __hidden_ver1 (__strstr_sse2, __GI_strstr, __strstr_sse2); +#endif + +#include "string/strstr.c" + +extern __typeof (__redirect_strstr) __strstr_sse2_unaligned attribute_hidden; +extern __typeof (__redirect_strstr) __strstr_sse2 attribute_hidden; + +#include "init-arch.h" + +/* Avoid DWARF definition DIE on ifunc symbol so that GDB can handle + ifunc symbol properly. */ +extern __typeof (__redirect_strstr) __libc_strstr; +libc_ifunc (__libc_strstr, + HAS_ARCH_FEATURE (Fast_Unaligned_Load) + ? __strstr_sse2_unaligned + : __strstr_sse2) + +#undef strstr +strong_alias (__libc_strstr, strstr) |